• +(91) 022-6659 5844
  • sales@jigneshsteel.com

Hsfg Studs and High Tensile Bolts supplier in Mumbai

Are you looking for hardened High Tensile Fasteners manufacturers in India? HT Bolts are available in various sizes, dimensions and grades. It has higher tensile strength when compared to other material and much more popular due to their tensile strength and are used in various applications. High Tensile Fasteners are the highest grade fasteners with an ultimate tensile strength of 1200 MPa or 12.9. It is a part of a low-carbon grade which has additional alloying elements such as chromium, manganese, molybdenum, silicon, nickel and vanadium which are designed to increase not only its durability, but its malleability and ductility too. High Tensile Bolts contains 0.15 – 0.25% carbon. The carbon content in high tensile steel is 0.60 – 0.80%, Sulphur 0.05%, Manganese 0.60%, Silicon 0.20% and Phosphorus 0.05%. High Tensile Hex Bolt can be treated and quenched to achieve a new hardness, which is stronger than other steels. It has high tensile property which is responsible for steel’s tension resistance, fatigue strengths at certain stress levels and high yield. The properties of High Tensile Nut Bolt are still present even when the material is exposed to elevated temperature levels, which makes it a very versatile and suitable for use in multitude situations. Ht Bolt is also known for its resistance to atmospheric corrosion, the humiliation imposed to materials through exposure to air and air-borne pollutants. And this kind of corrosion is usually found in areas where the electrolytes in water come into contact with the metal, usually in, humid, rainy or snowy conditions.

High Tensile Fasteners

High Tensile Fasteners

High Tensile Nuts

High Tensile Nuts

High Tensile Bolts

High Tensile Bolts

High Tensile Hex Bolts

High Tensile Hex Bolts

High Tensile Stud Bolts

High Tensile Stud Bolts

High Tensile Threaded Rod

High Tensile Threaded Rod

Buy directly from High Tensile Fasteners manufacturers in India for threaded fastening system, High Strength Hex Bolt, Screws and U Bolts with higher shear strength and low price in Mumbai

Specifications of High Tensile Fasteners

Finding Fully heat-treated High Tensile Nut Bolt manufacturers in India? Heavy duty M8 M10 M12 M16 High Strength Threaded Rod and HT Flange Bolts in all metric sizes and types

Standard of High Tensile Fasteners
  • Bolts: DIN EN ISO 4014/ 4017, DIN 931 / 933 and IS 1364 / IS 1363
  • Nuts : DIN EN ISO 4032, DIN 934 / 970 and IS 1363 / IS 1364 - 67
  • Washer: DIN EN ISO 3063 DIN 125 / ISO 7090 and IS 2015 / 3064
High Tensile Fasteners Sizes
  • Cold Formed process: M2- M24
  • Hot Forged process: M24-M100, 1-1/2” Dia, up to 1100mm lg

Manufacturer of Metric M2, M3, M3.5, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M42, M45, M48 to M160 and Custom Metric High Tensile Fasteners

Hsfg Bolts Size Metric
  • Dia: M10 - M110
  • Length: 12 - 1200MM
High Tensile Hex Bolts Size Inch
  • Dia: 1/2" - 4.0"
  • Length: 1/2" - 52"
International Standards

Manufacturer of High Tensile Fasteners as per IS, ANSI, ASTM, DIN, ISO, JIS, GB, ASME, BS, UNI, CSN, EU, IFI, PN, and all International Standards

  • ANSI B 18.2.4 2M
  • International ISO
  • ANSI B 28.2.4 1M
  • ANSI - American National Standards Institute
  • GB/T5783, GB/T5782, GB5783
  • American ASME
  • Indian IS
  • European EU
  • Spanish CSN
  • American SAE
  • German DIN
  • Polish PN
  • British BS
  • Italian UNI
High Strength Fasteners Length 3 mm to 200 mm
IS 3757 High Tensile Steel Bolts & Screws US Threads METRIC, BSW, BSF, Unified national coarse (UNC), Unified national fine (UNF), Unified national extra fine (UNEF), UNJC and UNJF threads, UNK threads, UNR threads, Constant-pitch threads
High Tensile Fasteners UTS - Unified Thread Standard UNC, UNF, NPT, UNS, UNEF, NPTF
High Tensile Bolts Head drive Phillips/Slot, Phillips, Slotted, Six-Lobe, etc
Origin of Material High Tensile Fasteners are Western European. Eastern origin possible on request.
High Tensile Nut Bolt Surface Finish & Coating
  • Plain
  • Zinc plated
  • Hot Dip Galvanised (HDG)

All Hsfg Fasteners surface finishes can be supplied including Galvanised, Zinc, Sherardized, Dacromet, Electroless Nickel, Geomet & PTFE.

Other High Tensile Fasteners manufacturers Omni, APL, Deepak Fasteners, Unbrako, Kundan, Sundaram Precision, Infasco, Caparo, EBY Fastener, SPAX® Screws, GKW Etc.
High Strength Fasteners types Anchors, Washers, Bolts, Hexagon Nut, Screws, Socket Head Cap Screw, Cap Screw, Studs, Sockets, Nuts, Wing Screw, Hex Domed Cap Nuts, Socket Screw, Hex Head Bolts, T-Head Bolts, Foundation Bolts, Eye Bolt, Hex Nut, Structural Bolts, U Bolts, Pan Head Screw, Marine Anchors, Nut, Hex Set Screw, Anchor Bolt, Studs, Stud Bolts, Machine Screw, Wing Screw, Square Nut, Spring Washers, Mushroom Head Square Neck Bolts, Hex Coupling Nut, J Bolts, Socket Hexagon Head Screw, Screw, Allen Cap screw
Why Jignesh Steel?
  • An Indian manufacturer of High Tensile Nut Bolt, established in Year 2008
  • Wide International network : Middle East,Western Europe, Eastern Europe, Southeast Asia, North America, and South America
  • Best Price in India compared to High Tensile Fasteners manufacturers in China
  • Highly professional and technical team
  • Pre-production High Tensile Carbon Steel Fasteners sample before mass production
  • High precision threads
  • Always final Inspection before shipment
Delivery time Regular product is about 7-15 days
MOQ 5 pieces
Preferred High Tensile Nut Bolt Drawing Formats JPEG, PDF, CAD, STP, IGS
Find our dealers & distributors of High Tensile Fasteners Ahvaz, Dhaka, Muscat, Khobar, Pune, Ankara, Agra, Hyderabad, Kochi, Kuwait, Nagpur, Patna, Mumbai, Caracas, Janeiro, Mysuru, New Delhi, Vung Granada, Singapore, Panipat, Gurgaon, Vapi, Ernakulam, Jaipur, Gujarat, Ranchi, Nashik, Tehran, Gimhae-si, Shah Alam, Santiago, Baroda, Chennai, Montreal, Bengaluru, Abu Dhabi, Bogota, Jakarta, Bangalore, Vadodara, Melbourne, Rajkot, Brisbane, Mexico, Houston, Navi Mumbai, Tau, Calgary, Lagos, Doha, Lucknow, Dubai, Dammam, Courbevoie, Indore, Coimbatore, Port-of-Spain, Ahmedabad, Istanbul, London, Howrah, Ludhiana, Kolkata, Sydney, Kuala Lumpur, Thane, Perth, Surat, Karachi, India, Manama, Sharjah, Seoul, Pimpri-Chinchwad, Bhubaneswar, Jamshedpur, Noida, Riyadh, Thiruvananthapuram, Kanpur
Ask for Test Certificates from High Tensile Fasteners manufacturers
  • Manufacturer Test Certificate (MTC) as per EN 10204 / 3.1,
  • Tri-Roll Thread Comparators
  • Hsfg Bolts Tensile testing to ISO 898-1
  • Hardness testing to ISO 6508-1
  • Suitability for preloading to EN 14399-2
  • Suitability test for calibrated preload to EN 14399-10
  • High Strength Bolts Charpy Impact testing in accordance with ISO 148-1
  • Calibrated gauges and tools
  • Nut proof load testing to ISO 898-2
High Tensile Fasteners manufacturers head marking
  • ATC (AUTOCRAFT), China
  • JS (JIGNESH STEEL), India
  • FKE (FWU KUANG), Taiwan
  • JH (JINN HER), China -Taiwan
  • LE (LAKE ERIE SCREW), USA
  • LPS (LAKSHMI PRECISION), India
  • MFL (MOHINDRA FASTENERS), India
  • NB (NINGBO FASTENER FACTORY), China
  • JDF (NINGBO JINDING), China
  • THE (TONG HWEI), China -Taiwan
  • TVS (SUNDRAM), India
  • YFS (YFS FAN SHENG), Taiwan
  • INFASCO, Canada
Free Samples Yes
Payment Terms T/T, Western Union, Paypal, L/C or Trade Assurance 30% deposit & balance before shipping
Port of Dispatch Mumbai or Kalamboli ports in Maharashtra state of India
IS 3757 High Tensile Steel Fasteners Application and Uses Industrial, Wind tower, Railway, Nuclear power, Construction, Electronic, and Automotive industry
ISO - International Organization for Standardization

High Strength Fasteners Grades

Class/ Grades Strength or Stress
ASTM A325 Fasteners These Bolts meet A325 Type 1 standards for structural bolting.
Grade A Nuts Strength exceeds Grade 2.
Grade B Nuts Strength is equal to Grade 5.
Grade 2 Fasteners It has low strength
Grade B7 Threaded
Stud & Rod
Similar to Grade 5. Use with Grade 2H and Grade C nuts.
Grade C Nuts Strength exceeds Grade 5. Use with heat-treated medium-strength steel fasteners like A325 Structural Bolts.
Grade G Nuts Strength is equal to Grade 8. Use with A325 Structural Bolts.
Grade 2H Nuts Strength is equal to Grade 5. Use with A325 Structural Bolts.
Grade 8 Fasteners High strength.
Grade 5 Fasteners Medium strength.
Metric Class 4 Fasteners Equal to Grade 2.
Metric Class 10.9 Fasteners Equal to Grade 8.
Metric Class 8.8 Fasteners Equal to Grade 5.
Metric Class 12.9 Fasteners The highest metric class for strength, it exceeds Grade 8.

High Tensile Fasteners sizes and types

High Tensile Fasteners Type SIZE GRADE ASME ISO ASTM
ASTM F568 Socket Head Cap Fasteners M1.6 to M64 12.9 B18.3.1 M 4762 A574M
Socket Low Head Cap Fasteners M4 to M20 10.9
Countersunk Socket Head Fasteners M3 to M20 012.9 B18.3.5M 10642 F835M
ASME SF568 Button Head Socket Fasteners M3 to M12 012.9 B18.3.4M 7380 F835M
Flange Button Head Socket Fasteners M3 to M10 012.9 F835M
ASTM F568 Socket Head Shoulder Fasteners M6 to M24 012.9 B18.3.3M
HT Knurled Point Socket Set Fasteners M3 to M20 45H B18.3.6M 4029 F912M
Dog Point Socket Set Fasteners M3 to M20 45H B18.3.6M 4028 F912M
Cone Point Socket Set Fasteners M3 to M12 45H B18.3.6M 4027 F912M
HT Plain Point Socket Set Fasteners M3 to M20 45H B18.3.6M 4029 F912M
Flat Point Socket Set Fasteners M6 to M12 45H B18.3.6M 4026 F912M
Taper Pressure Plug M8 to M22 -

High Tensile Fasteners Type SIZE GRADE TENSILE STRENGTH STANDARD
HT Hex Head Fasteners M4 to M80 10.9 1040N / mm2 min ISO 4017 (Full Thread)
ISO 4014 (Half Thread)

High Tensile Nuts Type SIZE GRADE STANDARD
M10 HT Hex Nut M6 to M42 10 ISO 4032
M8 HT Nylock Nut M6 to M20 (Gr.8)
M10 to M24 (Gr.10)
8 & 10 DIN 985
HT Nylock Nut M6 to M20 (Gr.8)
M10 to M24 (Gr.10)
8 & `10 DIN 982
HT Hex Weld Nut M6 to M12 8 DIN 929

High Tensile Washers Type SIZE HARDNESS STANDARD
Flat Section Spring Washer, High Tensile 3mm to 39mm HV (430 to 530) DIN 127 B
Hardened Washer, High Tensile 12mm to 30mm HV (300 to 370) IS 2016
Square Section Spring Washer, High Tensile 3mm to 39mm HV (430 to 530) DIN 7980
Hardened Steel Washer, High Tensile 12mm to 56mm Rockwell 26 to 45 (HDG)
Rockwell 38 to 45 (Coated)
ASTM F436M

High Tensile Bolt Material Grade

Grade Description
Class 8.8 Medium carbon steel, quenched and tempered
Class 10.9 Alloy steel, quenched and tempered
Class 12.9 Alloy steel, quenched and tempered

High Tensile Bolt Tension Chart

Grade 5 HT Bolts (UNC)

HT Bolt Diameter Tensile Stress Area Inch2 Tensile Strength lb Proof Load lbs Clamp Load lbs When
*K=.20
Plain
(Dry)
lb.ft
*K=.15
Lightly Lubricated
lb.ft
*K=.10
Well Lubricated
lb.ft
1/4-20 00.0318 3800 2700 2025 8 6 4
5/16-18 00.0524 6300 4450 3338 17 13 9
3/8-16 00.0775 9300 6600 4950 31 23 15
7/16-14 00.1063 1280 9050 6788 49 35 25
1/2-13 00.1419 1700 12100 9038 75 55 38
9/16-12 00.1820 21800 15500 11588 109 80 54
5/8-11 00.2260 27100 19200 14400 150 110 75
3/4-10 00.3340 40100 28400 21300 266 200 133
7/8-9 00.4620 55400 39300 29438 429 320 215
1-8 00.6060 72700 51500 38625 644 480 322
1 1/8-7 00.7630 80100 56500 42338 794 600 397
1 1/4-7 00.9690 101700 71700 53775 1120 840 560
1 3/8-6 1.1550 121300 85500 64088 1469 1100 734
1 1/2-6 1.4050 147500 104000 78000 1950 1460 975

Grade 8 High tensile Bolts UNC

Bolt Diameter Tensile Stress Area Inch2 Tensile Strength lb Proof Load lbs Clamp Load lbs When
*K=.20
Plain
(Dry)
lb.ft
*K=.15
Lightly Lubricated
lb.ft
*K=.10
Well Lubricated
lb.ft
1/4-20 00.0318 4750 3800 2850 12 9 6
5/16-18 00.0524 7850 6300 4725 25 18 12
3/8-16 00.0775 11600 9300 6975 44 35 22
7/16-14 00.1063 15900 12800 9563 70 55 35
1/2-13 00.1419 21300 17000 12788 107 80 53
9/16-12 00.1820 27300 21800 16388 154 110 77
5/8-11 00.2260 33900 27100 20325 212 170 106
3/4-10 00.3340 50100 40100 30075 376 280 188
7/8-9 00.4620 69300 55400 41588 606 460 303
1-8 00.6060 90900 72700 54525 909 680 454
1 1/8-7 00.7630 114400 91600 68663 1287 960 644
1 1/4-7 00.9690 145400 116300 90000 1875 1360 938
1 3/8-6 1.1550 173200 138600 103950 2382 1780 1191
1 1/2-6 1.4050 210800 168600 126450 3161 2360 1581

Grade 5 High Tensile Bolts (UNF )

Bolt Diameter Tensile Stress Area Inch2 Tensile Strength lb Proof Load lbs Clamp Load lbs When
*K=.20
Plain
(Dry)
lb.ft
*K=.15
Lightly Lubricated
lb.ft
*K=.10
Well Lubricated
lb.ft
.1/4-28 00.0364 4350 3100 2325 10 7 5
.5/16-24 00.0580 6950 4900 3675 19 14 10
.3/8-24 00.0878 10500 7450 5588 35 26 17
.7/16-20 00.1187 14200 10100 7575 55 41 28
.1/2-20 00.1599 19200 13600 10200 85 64 43
.9/16-18 00.2030 24400 17300 12975 122 91 61
.5/8-18 00.2560 30700 21800 16350 170 128 85
.3/4-16 00.3730 44800 31700 23775 297 223 149
.7/8-14 00.5090 61100 43300 32475 474 355 237
.1-12 00.6630 79600 56400 42300 705 529 353
1-14UNS 00.6790 81500 57700 43275 721 541 361
1 1/8-12 00.8560 89900 63300 47475 890 668 445
1 1/4-12 1.0730 112700 79400 59550 1241 930 620
1 3/8-12 1.3150 138100 97300 72975 1672 1254 836
1 1/2-12 1.5810 166000 117000 87750 2194 1645 1097

Grade 8 High Tensile Bolts (UNF)

Bolt Diameter Tensile Stress Area Inch2 Tensile Strength lb Proof Load lbs Clamp Load lbs When
*K=.20
Plain
(Dry)
lb.ft
*K=.15
Lightly Lubricated
lb.ft
*K=.10
Well Lubricated
lb.ft
1/4-28 00.0364 5450 4350 3263 14 10 7
5/16-24 00.0580 8700 6950 5213 27 20 14
3/8-24 00.0878 13200 10500 7875 49 37 25
7/16-20 00.1187 17800 14200 10650 78 58 39
1/2-20 00.1599 24000 19200 14400 120 90 60
9/16-18 00.2030 30400 24400 18300 172 129 86
5/8-18 00.2560 38400 30700 23025 240 180 120
3/4-16 00.3730 56000 44800 33600 420 315 210
7/8-14 00.5090 76400 61100 45825 668 501 334
1-12 00.6630 99400 79600 59700 995 746 498
1-14UNS 00.6790 101900 81500 61125 1019 764 509
1 1/8-12 00.85601 128400 102700 77025 1444 1083 722
1 1/4-12 1.0730 161000 128800 96600 2013 1509 1006
1 3/8-12 1.3150 197200 157800 118350 2712 2034 1356
1 1/2-12 1.5810 237200 189700 142275 3557 2668 1778

Dimensions of High Tensile Bolts

ASTM F2329/ F2329M hot dip galvanized High Tensile Stud Bolt manufacturer in India, Best price of High Tension Eye Bolt and HT Anchor Bolt in Mumbai

High Tensile Heavy Hex Bolts Dimensions

 Heavy Hex Bolt Diameter  D  F  C  H
 Body Diameter    Width Across Flats   Width Across Corners   Height
 Max  Basic   Max        Min         Max  Min  Basic  Max       Min      
1/2 0.515 7/8 0.875 0.850 1.010 0.969 11/32 0.364 0.302
5/8 0.642 1-1/16 1.062 1.031 1.227 1.175 27/64 0.444 0.378
3/4 0.768 1-1/4 1.250 1.212 1.443 1.383 1/2 0.524 0.455
7/8 0.895 1-7/16 1.438 1.394 1.660 1.589 37/64 0.604 0.531
1 1.022 1-5/8 1.625 1.575 1.876 1.796 43/64 0.700 0.591
1-1/8 1.149 1-13/16 1.812 1.756 2.093 2.002 3/4 0.780 0.658
1-1/4 1.277 2 2.00 1.938 2.309 2.209 27/32 0.876 0.749
1-3/8 1.404 2-3/16 2.188 2.119 2.526 2.416 29/32 0.940 0.810
1-1/2 1.531 2-3/8 2.375 2.300 2.742 2.622 1 1.036 0.902
1-3/4 1.785 2-3/4 2.750 2.662 3.175 3.035 1-5/32 1.196 1.054
2 2.039 3-1/8 3.125 3.025 3.608 3.449 1-11/32 1.388 1.175
2-1/4 2.305 3-1/2 3.500 3.388 4.041 3.862 1-1/2 1.548 1.327
2-1/2 2.559 3-7/8 3.875 3.750 4.474 4.275 1-21/32 1.708 1.479

Hsfg Hex Nuts Dimensions

Buy High Tensile Nuts and Bolts for long life, providing Annealing heat treatments for High Strength Hex Head Bolt and HT Studs

High Strength Heavy Hex Nut Dimensions in mm

ISO High Tensile Hex Nut NB Across Corners MAX Thickness MIN Thickness MAX Across Flats MIN Across Flats
M 8 14.38 6.8 6.44 13 12.73
M 10 17.77 8.4 8.04 16 15.73
M 12 20.03 10.8 10.37 18 17.73
M 14 23.35 12.8 12.1 21 20.67
M 16 26.75 14.8 14.1 24 23.67
M 18 29.56 15.8 15.1 27 26.16
M 20 32.95 18 16.9 30 29.16
M 22 37.29 19.4 18.1 34 33
M 24 39.55 21.5 20.2 36 35
M 27 45.2 23.8 22.5 41 40
M 30 50.85 26.6 24.3 46 45
M 33 55.37 28.7 27.4 50 49
M 36 60.79 31 29.4 55 53.8
M 39 66.44 33.4 31.8 60 58.8
M 42 71.3 34 32.4 65 63.1
M 45 76.95 36 34.4 70 68.1
M 48 82.6 38 39.4 75 73.1
M 52 88.25 42 40.4 80 78.1
M 56 93.56 45 43.4 85 82.8
M 60 99.21 48 46.4 90 87.8
M 64 104.86 51 49.1 95 92.8
M 68 110.51 54 52.1 100 97.8
M 72 x 6 116.16 58 56.1 105 102.8
M 76 x 6 121.81 61 59.1 110 107.8
M 80 x 6 127.46 64 62.1 115 112.8

High Strength Flat Washer Dimensions

ISO 7089 High Tensile Flat Washer dimensions in mm

High Strength Flat Washer Dimensions

Hsfg Bolt Size USS SAE
OD (in.) ID (in.) Thickness OD (in.) ID (in.) Thickness
1/8 (#6) - - - 0.375 0.156 .036/.065
5/32 (#8) - - - 0.438 0.188 .036/.065
3/16 (#10) 0.560 0.250 .036/.065 0.500 0.220 .036/.065
7/32 (#12) - - - 0.562 0.250 .051/.080
1/4 (#14) 0.734 0.312 .051/.080 0.625 0.281 .051/.080
5/16 0.875 0.375 .064/.104 0.688 0.344 .051/.080
3/8 1.000 0.438 .064/.104 0.812 0.406 .051/.080
7/16 1.250 0.500 .064/.104 0.922 0.469 .051/.080
1/2 1.375 0.562 .086/.132 1.062 0.531 .074/.121
9/16 1.469 0.625 .086/.132 1.156 0.594 .074/.121
5/8 1.750 0.688 .108/.160 1.312 0.656 .074/.121
3/4 2.000 0.812 .122/.177 1.469 0.812 .108/.160
7/8 2.250 0.938 .136/.192 1.750 0.938 .108/.160
1 2.500 1.062 .136/.192 2.000 1.062 .108/.160
1 1/8 2.750 1.250 .136/.192 2.250 1.250 .108/.160
1 1/4 3.000 1.375 .136/.192 2.500 1.375 .136/.192
1 3/8 3.250 1.500 .153/.213 2.750 1.500 .136/.213
1 1/2 3.500 1.625 .153/.213 3.000 1.625 .153/.213
1 5/8 3.750 1.750 .153/.213 - - -
1 3/4 4.000 1.875 .153/.213 - - -
1 7/8 4.250 2.000 .153/.213 - - -
2 4.500 2.125 .153/.213 - - -
2 1/4 4.750 2.375 .193/.248 - - -
2 1/2 5.000 2.625 .210/.280 - - -
2 3/4 5.250 2.875 .228/.310 - - -
3 5.500 3.125 .249/.327 - - -

IS 3757 High Tensile Steel Socket Head Cap Screw Dimensions

American National Standard ANSI/ASME B18.3.1M High Tensile Socket Head Cap Screws

IS 3757 High Tensile Steel Socket Head Cap Screw Dimensions

Hsfg Screw Nom. Size Thread Pitch Body
Diameter
D
Head
Diameter
A
Head
Height
H
Chamfer
or
Radius
S
Hexagon
Socket
Size
J
Spline
Socket
Sizea
M
Key
Engagement
T
Transition
Dia.
B
Max Min Max Min Max Min Max Nom. Nom. Min Max
M1.6 x 0.35 1.60 1.46 3.00 2.87 1.60 1.52 0.16 1.5 1.829 0.80 2.0
M2 x 0.4 2.00 1.86 3.80 3.65 2.00 1.91 0.20 1.5 1.829 1.00 2.6
M2.5 x 0.45 2.50 2.36 4.50 4.33 2.50 2.40 0.25 2.0 2.438 1.25 3.1
M3 x 0.5 3.00 2.86 5.50 5.32 3.00 2.89 0.30 2.5 2.819 1.50 3.6
M4 x 0.7 4.00 3.82 7.00 6.80 4.00 3.88 0.40 3.0 3.378 2.00 4.7
M5 x 0.8 5.00 4.82 8.50 8.27 5.00 4.86 0.50 4.0 4.648 2.50 5.7
M6 x 1 6.00 5.82 10.00 9.74 6.00 5.85 0.60 5.0 5.486 3.00 6.8
M8 x 1.25 8.00 7.78 13.00 12.70 8.00 7.83 0.80 6.0 7.391 4.00 9.2
M10 x 1.5 10.00 9.78 16.00 15.67 10.00 9.81 1.00 8.0 5.00 11.2
M12 x 1.75 12.00 11.73 18.00 17.63 12.00 11.79 1.20 10.0 6.00 14.2
M14 x 2b 14.00 13.73 21.00 20.60 14.00 13.77 1.40 12.0 7.00 16.2
M16 x 2 16.00 15.73 24.00 23.58 16.00 15.76 1.60 14.0 8.00 18.2
M20 x 2.5 20.00 19.67 30.00 29.53 20.00 19.73 2.00 17.0 10.00 22.4
M24 x 3 24.00 23.67 36.00 35.48 24.00 23.70 2.40 19.0 12.00 26.4
M30 x 3.5 30.00 29.67 45.00 44.42 30.00 29.67 3.00 22.0 15.00 33.4
M36 x 4 36.00 35.61 54.00 53.37 36.00 35.64 3.60 27.0 18.00 39.4
M42 x 4.5 42.00 41.61 63.00 62.31 42.00 41.61 4.20 32.0 21.00 45.6
M48 x 5 48.00 47.61 72.00 71.27 48.00 47.58 4.80 36.0 24.00 52.6

High Tensile Bolts Type

High Tensile U Bolt

High Tensile U Bolt

Hsfg Eye Bolt

Hsfg Eye Bolt

High Strength Hex Bolt

High Strength Hex Bolt

IS 3757 High Tensile Steel Heavy Hex Bolt

IS 3757 High Tensile Steel Heavy Hex Bolt

High Tensile Carbon Steel  Hex Head Bolt

High Tensile Carbon Steel Hex Head Bolt

HT Carriage Bolt

HT Carriage Bolt

Ultimate Tensile Strength Galvanized Bolt

Ultimate Tensile Strength Galvanized Bolt

High Tension Hot Dip Galvanized Bolts

High Tension Hot Dip Galvanized Bolts

High Tensile M16 Bolt

High Tensile M16 Bolt

Hsfg M8 Bolt

Hsfg M8 Bolt

High Strength M10 Bolt

High Strength M10 Bolt

IS 3757 High Tensile Steel Square Head T Bolt

IS 3757 High Tensile Steel Square Head T Bolt

High Tensile Carbon Steel  Oval Head Bolt

High Tensile Carbon Steel Oval Head Bolt

Full Thread HT Hex Bolt

Full Thread HT Hex Bolt

Ultimate Tensile Strength Hexagon Bolt

Ultimate Tensile Strength Hexagon Bolt

High Tension Flange Bolt

High Tension Flange Bolt

High Tensile Plow Bolt

High Tensile Plow Bolt

Hsfg Lag Bolt

Hsfg Lag Bolt

High Strength Structural Hex Bolts

High Strength Structural Hex Bolts

IS 3757 High Tensile Steel Cup Head Bolt

IS 3757 High Tensile Steel Cup Head Bolt

High Tensile Carbon Steel  Allen Bolt

High Tensile Carbon Steel Allen Bolt

High Tensile CSK Bolt

High Tensile CSK Bolt

Types of High Tensile Nuts

High Tensile Lock Nut

High Tensile Lock Nut

High Tensile Hex Nut

High Tensile Hex Nut

High Strength Weld Nut

High Strength Weld Nut

IS 3757 High Tensile Steel Pinion Nut

IS 3757 High Tensile Steel Pinion Nut

High Tensile Carbon Steel  Heavy Hex Nut

High Tensile Carbon Steel Heavy Hex Nut

High Tensile Slotted Flange Nut

High Tensile Slotted Flange Nut

Ultimate Tensile Strength M10 Hexagon Nut

Ultimate Tensile Strength M10 Hexagon Nut

Fine Thread High Tension Hex Nut

Fine Thread High Tension Hex Nut

High Tensile Stud Bolt Type

High Tensile Stud Bolt

High Tensile Stud Bolt

High Tensile Threaded Rod

High Tensile Threaded Rod

High Strength Studs

High Strength Studs

IS 3757 High Tensile Steel Stud Bar

IS 3757 High Tensile Steel Stud Bar

High Tensile Carbon Steel  Weld Studs

High Tensile Carbon Steel Weld Studs

High Tensile Fully Threaded Studs

High Tensile Fully Threaded Studs

Ultimate Tensile Strength Double End Studs

Ultimate Tensile Strength Double End Studs

High Tension Partially Threaded Studs

High Tension Partially Threaded Studs

Most Selling types of High Tensile Screws

High Tensile Hex Screw

High Tensile Hex Screw

High Tensile Lag Screw

High Tensile Lag Screw

High Strength Socket Head Cap Screw

High Strength Socket Head Cap Screw

IS 3757 High Tensile Steel Machine Screw

IS 3757 High Tensile Steel Machine Screw

High Tensile Carbon Steel  Set Screw

High Tensile Carbon Steel Set Screw

High Tensile Coach Screw

High Tensile Coach Screw

Ultimate Tensile Strength Grub Screw

Ultimate Tensile Strength Grub Screw

High Tension Cap Screw

High Tension Cap Screw

High Tensile Hex Head Screw

High Tensile Hex Head Screw

Hsfg Hexagon Head Screw

Hsfg Hexagon Head Screw

High Strength Screw Hex Flange

High Strength Screw Hex Flange

IS 3757 High Tensile Steel Square Head Screw

IS 3757 High Tensile Steel Square Head Screw

Types of High Tensile Washers

High Tensile Flat Washer

High Tensile Flat Washer

High Tensile Fender Washer

High Tensile Fender Washer

High Strength Curved Spring Washer

High Strength Curved Spring Washer

IS 3757 High Tensile Steel Split Lock Washer

IS 3757 High Tensile Steel Split Lock Washer

High Tensile Carbon Steel  Square Washer

High Tensile Carbon Steel Square Washer

High Tensile Star Washer

High Tensile Star Washer

Ultimate Tensile Strength Tooth Lock Washer

Ultimate Tensile Strength Tooth Lock Washer

High Tension Wave Spring Washer

High Tension Wave Spring Washer

We get 80% repeated orders from the below locations

HSFG Washer Structural AS1252:1983/96 PLAIN Germany, UK, Malaysia, Thailand, Czechia
AS1252 HDG/ HSFG Structural Hex Nut Hungary, Bangladesh, USA, Finland, Malaysia
HSFG Structural ASSY (B,N,W) K0 AS1252 HDG Dammam -KSA, Philippines, Indonesia, Belgium, Dubai
AS1252 High Tensile Structural Bolt Singapore, Europe, Qatar, Thailand, France
Hsfg Standard hexagon Bolt / Screws Argentina, Hong Kong, Malaysia, UAE, Oman
High Tensile Hexagon nuts Singapore, Chile, Austria, Indonesia, Italy, Iran
M12 High Strength Carriage bolts UAE, Brazil, Kuwait, Saudi Arabia (KSA), South Africa
High Tension Heavy hex bolts Singapore, Bahrain, South Africa, New Zealand, UAE
HT Shoulder bolts & High tensile J hook anchor bolt UK, Jakarta -Indonesia, Nigeria, Philippines, Australia
Ultimate Tensile Strength Hot dip galvanised hex bolts for wind energy and wind mills Ellington -United States, UK, Poland, Canada
High Tensile Steel High strength friction grip bolts and nuts Vietnam, Canada, Singapore, Philippines, Malaysia
M10 High Tensile Carbon Steel Hub bolts Jordan, Turkey, UAE, Norway, Malaysia
M8 High Tensile Banjo bolts Dubai, Malaysia, Russia, Morocco, Netherlands
M16 High Tensile U Bolt & High Strength Wheel bolts Malaysia, Los Alamos -Mexico, Taiwan, Philippines
High Tension Track shoe bolts and nuts Malaysia, Singapore, UAE, NY 12203 (USA), South Korea
DIN-EN 14399-4 High Tensile Flange Bolt Spain, Mexico, UK, Egypt, Vietnam
ASME B18.2.6 High Tensile Anchor/ Foundation Bolt Europe, United Kingdom -UK, Malaysia, UAE, Greece
IS3757 High Tensile Eye Bolt Europe, Malaysia, Romania, Portugal, Japan
High Tensile Studs Sweden, Colombia, Malaysia, China, Vietnam, Denmark, Peru

High Tensile Fasteners Application

  • Nuclear Energy Sector
  • High Tensile Stud Bolt for Construction
  • Metric High Tensile Hex Bolt for Power Generation
  • High quality High Tensile Petrochemical Fasteners
  • High Strength High Tensile Bolt and Nuts for Automotive industry
  • Large size High Tensile Bolt for Oil & Gas Industries
  • Heavy duty High Tensile Fasteners for Heat Exchangers
  • High Tensile Nut Bolt suitable for Off-Shore Oil Drilling
  • Offshore & Chemical Industry

Tool & Equipment for High Tensile Bolts Testing

  • Roughness tester used to test the surface finish of a High Tensile Bolts and Nuts
  • Coordinate Measuring Machine
  • Image measuring instrument for High Tensile bolts
  • High Tensile fasteners Routine inspection of calipers
  • Thread gauge and Smooth plug gauge used to check High Tensile Screws and Nuts quickly
  • Micrometer for accurate measurement of High Tensile Fasteners

Hsfg Nuts Sizes

IS 3757 High Tensile Steel Finished Hex Nuts sizes as per ANSI/ASME B18.2.2

Hsfg Nuts Sizes

Nominal or Basic Major Diameter of Nut Thread

High Tensile Nuts Width Across Flats (F)

Width Across Corners (G) Thickness of Hsfg Hex Nuts (H) 
Basic Max Min  Max  Min Basic  Max Min 
1/4 0.2500 7/16 .438 .428 .505 .488 7/32 0.226 0.212
5/16 0.3125 1/2 .500 .489 .577 .557 17/64 0.273 0.258
3/8 0.3750 9/16 .562 .551 .650 .628 21/64 0.337 0.320
7/16 0.4375 11/16 .688 .675 .794 .768 3/8 0.385 0.365
1/2 0.5000 3/4 .750 .736 .866 .840 7/16 0.448 0.427
9/16 0.5625 7/8 .875 .861 1.010 .982 31/64 0.496 0.473
5/8 0.6250 15/16 .938 .922 1.083 1.051 35/64 0.559 0.535
3/4 0.7500 1-1/8 1.125 1.088 1.299 1.240 41/64 0.665 0.617
7/8 0.8750 1-5/16 1.312 1.269 1.516 1.447 3/4 0.776 0.724
1 1.0000 1-1/2 1.500 1.450 1.732 1.653 55/64 0.887 0.831
1-1/8 1.1250 1-11/16 1.688 1.631 1.949 1.859 31/32 0.999 0.939
1-1/4 1.2500 1-7/8 1.875 1.812 2.165 2.066 1-1/16 1.094 1.030
1-3/8 1.3750 2-1/16 2.062 1.994 2.382 2.273 1-11/64 1.206 1.138
1-1/2 1.5000 2-1/4 2.250 2.175 2.598 2.480 1-9/32 1.317 1.245
1-5/8 1.6250 2-7/16 2.438 2.356 2.815 2.686 1-25/64 1.429 1.353
1-3/4 1.7500 2-5/8 2.625 2.538 3.031 2.893 1-1/2 1.540 1.460
2 2.000 3 3.000 2.900 3.464 3.306 1-23/32 1.763 1.675
2-1/4 2.2500 3-3/8 3.375 3.263 3.897 3.719 1-15/16 1.986 1.890
2-1/2 2.5000 3-3/4 3.750 3.625 4.330 4.133 2-5/32 2.209 2.105
2-3/4 2.7500 4-1/8 4.125 3.988 4.763 4.456 2-3/8 2.431 2.319
3 3.000 4-1/2 4.500 4.350 5.196 4.959 2-19/32 2.654 2.534

High Strength Screws Sizes

IS 3757 High Tensile Steel Screw Size Body Dia Hex Key Size Head Height Head Dia Maximum Thread Length Minimum Thread Length
No. 0 0.06 0.05 0.06 0.096 5/8 3/8
No. 1 0.073 1/16 0.073 0.118 7/8 3/8
No. 2 0.086 5/64 0.086 0.14 7/8 1/2
No. 3 0.099 5/64 0.099 0.161 7/8 1/2
No. 4 0.112 3/32 0.112 0.183 11/8 11/16
No. 5 0.125 3/32 0.125 0.205 1 11/16
No. 6 0.138 7/64 0.138 0.226 11/8 11/16
No. 8 0.164 9/64 0.164 0.27 11/4 3/4
No. 10 0.19 5/32 0.19 0.312 13/8 15/16
No. 12 0.216 5/32 0.216 0.345 11/4 15/16
1/4 0.250 3/16 1/4 3/8 11/2 15/16
5/16 0.3125 1/4 5/16 15/32 1-3/4 1-1/16
3/8 0.375 5/16 3/8 9/16 2 1-3/16
7/16 0.438 3/8 7/16 21/32 2-1/4 13/16
1/2 0.500 3/8 1/2 3/4 2-1/2 1-3/8
9/16 0.5625 7/16 9/16 27/32 2-7/16 1-5/8
5/8 0.625 1/2 5/8 15/16 3 1-5/8
3/4 0.750 5/8 3/4 11/8 3-1/2 1-7/8
7/8 0.875 3/4 7/8 15/16 3-3/4 2-1/16
1 1.000 3/4 1 11/2 4-1/2 2-1/4
1-1/8 1.125 7/8 1-1/8 111/16 4-21/32 2-13/16
1-1/4 1.250 7/8 1-1/4 17/8 5-3/32 3-1/8
1-1/2 1.500 1 1-1/2 21/4 6-5/64 3-3/4
1-3/4 1.750 11/4 1-3/4 25/8 7-1/8 4-3/8
2 2.000 11/2 2 3 8-7/64 5

IS 3757 High Tensile Steel Washer Sizes

High Tensile SAE Flat Washers
Size Inside Diameter Outside Diameter Thickness
#2 3/32" 1/4" .020"
#4 1/8" 5/16" 1/32"
#6 5/32" 3/8" 3/64"
#8 3/16" 7/16" 3/64"
#10 7/32" 1/2" 3/64"
1/4 9/32" 5/8" 1/16"
5/16 11/32" 11/16" 1/16"
3/8 13/32" 13/16" 1/16"
7/16 15/32" 59/64" 1/16"
1/2 17/32" 1-1/16" 3/32"
9/16 19/32" 1-3/16" 3/32"
5/8 21/32" 1-5/16" 3/32"
3/4 13/16" 1-1/2" 9/64"
7/8 15/16" 1-3/4" 9/64"
1" 1-1/16" 2" 9/64"
1-1/8 1-3/16" 2-1/4" 9/64"
1-1/4 1-5/16" 2-1/2" 5/32"
1-1/2 1-7/16" 3" 3/16"
1-5/8 1-3/4" 3-3/4" 3/16"
1-3/4 1-7/8" 4" 3/16"
2 2-1/8" 4-1/2" 3/16"

High Tensile Carbon Steel Bolts Sizes

ASME B18.2.1 HT Hex Head Bolt size (Inch Series)

High Tensile Carbon Steel  Bolts Sizes

Nominal or Basic High Tensile Bolt Diameter E F G H J LT (Thread Length) Y
Body Diameter Width Across Flats Width Across Corners Head Height Wrenching Height For Screw Lengths For Screw Lengths Transition Thread Length
1/4 0.25 0.25 0.245 7/16 0.438 0.428 0.505 0.488 5/32 0.163 0.150 0.106 0.750 1.000 0.250
5/16 0.3125 0.3125 0.3065 1/2 0.500 0.489 0.577 0.557 13/64 0.211 0.195 0.140 0.875 1.125 0.278
3/8 0.375 0.375 0.369 9/16 0.562 0.551 0.650 0.628 15/64 0.243 0.226 0.160 1.000 1.250 0.312
7/16 0.4375 0.4375 0.4305 5/8 0.625 0.612 0.722 0.698 9/32 0.291 0.272 0.195 1.125 1.375 0.357
1/2 0.5 0.5 0.493 3/4 0.750 0.736 0.866 0.840 5/16 0.323 0.302 0.215 1.250 1.500 0.385
9/16 0.5625 0.5625 0.5545 13/16 0.812 0.798 0.938 0.910 23/64 0.371 0.348 0.250 1.375 1.625 0.417
5/8 0.625 0.625 0.617 15/16 0.938 0.922 1.083 1.051 25/64 0.403 0.378 0.269 1.500 1.750 0.455
3/4 0.75 0.75 0.741 1-1/8 1.125 1.100 1.299 1.254 15/32 0.483 0.455 0.324 1.750 2.000 0.500
7/8 0.875 0.875 0.866 1-5/16 1.312 1.285 1.516 1.465 35/64 0.563 0.531 0.378 2.000 2.250 0.556
1 1 1 0.99 1-1/2 1.500 1.469 1.732 1.675 39/64 0.627 0.591 0.416 2.250 2.500 0.625
1-1/8 1.125 1.125 1.114 1-11/16 1.688 1.631 1.949 1.859 11/16 0.718 0.658 0.461 2.500 2.750 0.714
1-1/4 1.25 1.25 1.239 1-7/8 1.875 1.812 2.165 2.066 25/32 0.813 0.749 0.530 2.750 3.000 0.714
1-1/2 1.5 1.5 1.488 2-1/4 2.250 2.175 2.598 2.480 15/16 0.974 0.902 0.640 3.250 3.500 0.833

Design properties and pitch thread for high tensile bolt

Dimensions Hole diameter d0 [mm] Areas Bolt Tensile resistance Ft,Rd [kN] High Tensile Bolt Shear resistance per shear plane Fv,Rd [kN] Bearing resistance per mm of connected plate thickness Fv,Rd / t [kN/mm] (for e1≥3d0, e2≥1.5d0, p1≥3.75d0, p2≥3d0) Punching resistance per mm of plate thickness under bolt or nut Bp,Rd / tp [kN/mm]
Metric
Size
Nominal diameter
d [mm]
Nut width across flats
s [mm]
Normal round hole Oversize round hole Short slotted hole Long slotted hole Gross area (unthreaded part)
Ag [mm2]
Stress area (threaded part)
As [mm2]
Class
4.6
Class
4.8
Class
5.6
Class
5.8
Class
6.8
Class
8.8
Class
10.9
Class
4.6
Class
4.8
Class
5.6
Class
5.8
Class
6.8
Class
8.8
Class
10.9
S235 / any S275 / 4.6, 4.8 S275 / ≥5.6 S355 / 4.6, 4.8 S355 / ≥5.6          S235                   S275                   S355         
M5 5 8 - - - - 19.6 14.2 4.09 4.09 5.11 5.11 6.13 8.18 10.2 2.73 2.27 3.41 2.84 3.41 5.45 5.68 3.60 4.00 4.30 4.00 4.90 4.68 5.59 6.37
M6 6 10 - - - - 28.3 20.1 5.79 5.79 7.24 7.24 8.68 11.6 14.5 3.86 3.22 4.82 4.02 4.82 7.72 8.04 4.32 4.80 5.16 4.80 5.88 5.85 6.99 7.96
M7 7 11 - - - - 38.5 28.9 8.32 8.32 10.4 10.4 12.5 16.6 20.8 5.55 4.62 6.94 5.78 6.94 11.1 11.6 5.04 5.60 6.02 5.60 6.86 6.43 7.68 8.76
M8 8 13 - - - - 50.3 36.6 10.5 10.5 13.2 13.2 15.8 21.1 26.4 7.03 5.86 8.78 7.32 8.78 14.1 14.6 5.76 6.40 6.88 6.40 7.84 7.60 9.08 10.35
M10 10 16 - - - - 78.5 58.0 16.7 16.7 20.9 20.9 25.1 33.4 41.8 11.1 9.28 13.9 11.6 13.9 22.3 23.2 7.20 8.00 8.60 8.00 9.80 9.36 11.18 12.74
M12 12 18 13 15 16x 13 30.0x 13 113 84.3 24.3 24.3 30.3 30.3 36.4 48.6 60.7 16.2 13.5 20.2 16.9 20.2 32.4 33.7 8.64 9.60 10.32 9.60 11.76 10.53 12.57 14.33
M14 14 21 15 17 18x 15 35.0x 15 154 115 33.1 33.1 41.4 41.4 49.7 66.2 82.8 22.1 18.4 27.6 23.0 27.6 44.2 46.0 10.08 11.20 12.04 11.20 13.72 12.28 14.67 16.72
M16 16 24 18 20 22x 18 40.0x 18 201 157 45.2 45.2 56.5 56.5 67.8 90.4 113.0 30.1 25.1 37.7 31.4 37.7 60.3 62.8 11.52 12.80 13.76 12.80 15.68 14.04 16.77 19.11
M18 18 27 20 22 24x 20 45.0x 20 254 192 55.3 55.3 69.1 69.1 82.9 110.6 138.2 36.9 30.7 46.1 38.4 46.1 73.7 76.8 12.96 14.40 15.48 14.40 17.64 15.79 18.86 21.49
M20 20 30 22 24 26x 22 50.0x 22 314 245 70.6 70.6 88.2 88.2 105.8 141.1 176.4 47.0 39.2 58.8 49.0 58.8 94.1 98.0 14.40 16.00 17.20 16.00 19.60 17.55 20.96 23.88
M22 22 34 24 26 28x 24 55.0x 24 380 303 87.3 87.3 109.1 109.1 130.9 174.5 218.2 58.2 48.5 72.7 60.6 72.7 116.4 121.2 15.84 17.60 18.92 17.60 21.56 19.89 23.75 27.07
M24 24 36 26 30 32x 26 60.0x 26 452 353 101.7 101.7 127.1 127.1 152.5 203.3 254.2 67.8 56.5 84.7 70.6 84.7 135.6 141.2 17.28 19.20 20.64 19.20 23.52 21.05 25.15 28.66
M27 27 41 30 35 37x 30 67.5x 30 573 459 132.2 132.2 165.2 165.2 198.3 264.4 330.5 88.1 73.4 110.2 91.8 110.2 176.3 183.6 19.44 21.60 23.22 21.60 26.46 23.98 28.64 32.64
M30 30 46 33 38 40x 33 75.0x 33 707 561 161.6 161.6 202.0 202.0 242.4 323.1 403.9 107.7 89.8 134.6 112.2 134.6 215.4 224.4 21.60 24.00 25.80 24.00 29.40 26.90 32.13 36.62
M33 33 50 36 41 43x 36 82.5x 36 855 694 199.9 199.9 249.8 249.8 299.8 399.7 499.7 133.2 111.0 166.6 138.8 166.6 266.5 277.6 23.76 26.40 28.38 26.40 32.34 29.24 34.93 39.80
M36 36 55 39 44 46x 39 90.0x 39 1020 817 235.3 235.3 294.1 294.1 352.9 470.6 588.2 156.9 130.7 196.1 163.4 196.1 313.7 326.8 25.92 28.80 30.96 28.80 35.28 32.17 38.42 43.78
M39 39 60 42 47 49x 42 97.5x 42 1190 976 281.1 281.1 351.4 351.4 421.6 562.2 702.7 187.4 156.2 234.2 195.2 234.2 374.8 390.4 28.08 31.20 33.54 31.20 38.22 35.09 41.91 47.76

Tensile strength of bolts

Ft,Rd = k2 . fub .As / γM2

where:

  • k2 is a coefficient that takes values k2 = 0.63 for High Tensile countersunk bolts or k2 = 0.9 otherwise.
  • fub is the ultimate tensile strength of the HT bolt depending on the bolt class
  • As is the nominal tensile stress area of the High Tensile Bolt.
  • γM2 is the partial safety factor for the resistance of High Tensile Bolt in accordance with EN1993-1-8 §2.2(2) Table 2.1 and the National Annex.
  • The recommended value in EN1993-1-8 is γM2 = 1.25.

Shear strength of bolts

Fv,Rd = αv . fub . A / γM2

where:

  • αv is a coefficient that takes values αv = 0.6 for ht bolt grades 4.6, 5.6, 8.8 or αv = 0.5 for bolt grades 4.8, 5.8, 6.8 and 10.9. When the shear plane passes through the unthreaded part of the bolt αv = 0.6.
  • fub is the tensile strength of the ht bolt depending on the bolt grade or class
  • A is the appropriate area for shear resistance. When the shear plane passes through the threaded part of the ht bolt A is equal to the tensile stress area of the high tensile bolt As. When the shear plane passes through the unthreaded part of the ht bolt A is equal to the gross cross-sectional area of the bolt Ag.
  • γM2 is the partial safety factor for the resistance of high tensile bolts as per  EN1993-1-8 §2.2.
  • The recommended value in EN1993-1-8 is γM2 = 1.25.

Strength properties of EN 1991-1-8 bolt

    High Tensile Bolt grade / class
Symbol Description Grade 4.6 Grade 4.8 Grade 5.6 Grade 5.8 Grade 6.8 Grade 8.8 Grade 10.9
fyb (MPa) Yield strength 240 320 300 400 480 640 900
fub (MPa) Ultimate tensile strength 400 400 500 500 600 800 1000

Difference Between High Tensile and High Strength Fasteners

Difference between high tensile and high strength fasteners

Fasteners are part of everyday life materials. There are bolts, nuts, screws and washers. All of these are applied in different applications and the applications differ in requirements. Two of the most noted properties of the fasteners are the yield strength, generally known as the strength and the ultimate tensile strength, generally known as the tensile strength.

The strength or yield strength is technically interpreted as the maximum stress at which a fastener changes shape permanently. The tensile strength or the ultimate tensile strength is interpreted as the maximum strength at which a fastener breaks off while being pulled apart. These two are important to assess which fastener could be used with which type of applications.

Grades & their strength

There are different grades of metals used in the production of fasteners. They all have different tensile and yield strengths and are used in applications accordingly. The measurement in PSI shows the different capacities of the grades. Grade 2 materials or the low to medium carbon steels have the lowest yield and tensile strengths. Their minimum yield strength is about 57000 PSI and the minimum tensile strength is about 74000 PSI. Some of the highest tensile strengths are seen in the class 10.9 and the 18-8 steels which have up to 150,000 PSI or 1040 MPa. The class 10.9 is the quenched and tempered alloy steels and the 18-8 is the chromium nickel steels having chromium in the range of 17-18% and nickel in 8-13%.

The difference in the material composition makes the steels to have different tensile and yield strengths. One of the highest tensile strengths is seen in tungsten included alloys. The Ferrium M54 is one of the steels with the highest yield strength. It has carbon, chromium, nickel, cobalt, molybdenum, vanadium and tungsten in the composition. It has the yield strength of up to 1731MPa at room temperatures.

As the yield strength and tensile strengths vary with material compositions, their applications vary as well. The high yield strength steels are used in heavy load bearing beams, steel frames and pipe systems. High tensile strength is useful in applications where smaller components need to bear heavier loads. Bolts and nuts, cables, pipes and fasteners of other types need to be minimal in size in some applications, but their strength should be higher. Infrastructure, ship building, transportation, aerospace and in automotive applications are some examples of high strength applications.

There are different grades and specifications of steel which have different tensile and yield strength for use in specific applications. The structural steel grades of S235, S275 and S355 have the yield strengths of 33000PSI, 36000PSI and 50000PSI respectively. Their grade names indicate the yield strength in MPa respectively 235MPa, 275MPa and 335MPa. But their tensile strengths vary to range from 360 to 510MPa in S235 grade, 370 to 530MPa in S275 and 470-630MPa in S355 grade.

The tensile strength of any steel material is the one that should be given full attention as if the application exceeds the tensile strength limits, the components will break, resulting in a catastrophe to the system. Exceeding the yield strength is also bad but is not as damaging as exceeding the tensile strength. Elongation of the material comes into play when using a material with the yield and tensile strengths in mind. While an application exceeds the tensile strength capacity, it gets into the elongation process until it meets the point where the material does not elongate anymore and hits the maximum tensile strength and then breaks. As the elongation value increases, the ability to forming the material also increases. It also means that the material has a range before breaking off since it exceeds a stress above the yield strength capacity.

High Tensile Fasteners Price List

Products FOB Price US $
M2-M40 High Tensile Fasteners & Hex Socket Bolt Surface Treatment Black Carbon Steel US $0.0661-$0.6581/ Piece
High Tensile Threading Rod US $0.10-$0.30/ Piece
High Tensile Hexagon Bolt US $0.05/ Piece
Galvanized high tensile hinge bolt US $0.01-$0.05/ Piece
High Tensile Hexagon Head Bolt With Washer US $0.02-$0.04/ Piece
Zinc Plated High tensile fastener hex bolt and nut US $0.60/ Piece
DIN933 High tensile bolt US $0.003-$0.50/ Piece
Black dacromet coating, high tensile steel structural hex bolt nut and washer set US $0.01/ Piece
High Tensile Strength Fastener M8 X 25 T Bolt US $0.09-$0.40/ Piece
High Tensile Fastener astm f593b f593a f593c 4.8 Steel Hex Bolt US $0.03-$0.08/ Piece
M2 to M12 carbon steel High Tensile Strength Fastener for Heavy Duty US $0.05-$0.10/ Piece
DIN 933 High Tensile Hot dip galvanized Carbon Steel Hex Bolt Fasteners US $0.001-$0.03/ Piece

Call us or send us an email to sales@jigneshsteel.com for more details. Always compare our price with other High Tensile Fasteners manufacturers in India or China