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

High Tensile Grade 8.8 Hex Bolt and Class 8.8 Allen Bolts manufacturer in India

The specification for 8.8 Grade Bolt standard covers all high tensile fasteners like Bolts/ Screws /Studs. This type of 8.8 Bolt could either have Coarse thread and fine pitch thread formation. The standard Grade 8.8 Bolts has been manufactured from Low or medium carbon Alloy Steel. These steel grades are comparatively cheaper and less strong. In a partially or fully annealed condition, the tensile strength of the 8.8 Hex Bolt is around 420 Mpa for low carbon steel and 500 Mpa for medium carbon steel, its core hardness in terms of Rockwell lies between B71 – 95. The surface hardness of the 8.8 Metric Bolt can be increased through carburizing.

Although low and medium carbon steels have a low tensile strength, they are ductile. Hence they are easy to shape and are used in applications which tends to make the most of the ductile feature of the alloy. For instance, the 8.8 Lag Bolt is used in mechanical equipment’s, buildings, bridges, tunnels, high speed railways etc.

The size range of the Hsfg Bolts Grade 8.8 in a fully or partially annealed condition is between M5 to M100. While the Structural Bolts grade 8.8 is available in self finished colour, other finishes applied to the steel alloy in order to provide additive value in terms of enhancing the physical or mechanical properties like its corrosion resistance and strength. Using Zinc either in the form of hot dip galvanization or for plating with white/ blue /yellow passivation increases the corrosion resistance of the 8.8 Allen bolt. Other finishes used on the Class 8.8 Bolt include blackened, nickel plated, cadmium plated and chromium plated.

Grade 8.8 Bolt

Grade 8.8 Bolt

8.8 Metric Bolt

8.8 Metric Bolt

8.8 Hex Bolt

8.8 Hex Bolt

8.8 Lag Bolt

8.8 Lag Bolt

Structural Bolts Grade 8.8

Structural Bolts Grade 8.8

High Tensile Bolt Grade 8.8

High Tensile Bolt Grade 8.8

Buy directly from Grade 8.8 Bolt manufacturers in India for largest range and quick delivery, supplier of Class 8.8 Metric Bolt and Hsfg Grade 8.8 Lag Bolt in Mumbai, considerable torque and large range of sizes

Grade 8.8 Bolt Specifications

Manufacturer of BS 3692 Class 8.8 Structural Bolts, High Tensile Grade 8.8 Bolt and Nut suitable for high stresses

Grade 8.8 Fasteners Sizes
  • Cold Formed 8.8 Bolt: M2-M24
  • Hot Forged 8.8 Bolt: M24-M100, 1-1/2” Dia, up to 1100mm lg

Manufacturer of 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 Grade 8.8 Bolt

8.8 Grade Bolts Size Metric
  • Dia: M10 - M110
  • Length: 12 - 1200MM
Grade 8.8 Hex Bolts Size Inch
  • Dia: 1/2" - 4.0"
  • Length: 1/2" - 52"
Grade 8.8 Bolt Length 3 mm to 200 mm
Grade 8.8 Bolt UTS - Unified Thread Standard UNC, UNF, NPT, UNS, UNEF, NPTF
Grade 8.8 Bolts Head drive Phillips/Slot, Phillips, Slotted, Six-Lobe, etc
Material Origin Grade 8.8 Bolt are Western European. Eastern origin possible on request.
Grade 8.8 Steel Bolts US Threads UNJC / UNJF threads, METRIC, BSW, Unified national fine (UNF), BSF, Unified national coarse (UNC), Unified national extra fine (UNEF), UNK threads, UNR threads, Constant-pitch threads
Other 8.8 Grade Fasteners
Grade 8.8 Nut Bolt Surface Finish & Coating
  • Hot Dip Galvanised (HDG)
  • Ptfe Coated Grade 8.8 Bolts
  • Zinc Electro Plating (Hexavalent or Trivalent Chrome)
  • Phosphate
  • Teflon
  • Xylon
  • Zinc Phosphate (yellow, blue, white, black)
  • Manganese Phosphate
  • Geometry
  • ZAC (Zinc Alluminium Flake Coating)
  • Cadmium
  • Black oxide
  • Plated zinc-nickel
  • Anodizing
  • Sherardized
  • Dacroment
  • Bright Zinc Plated (BZP)

All 8.8 Grade Fasteners surface finishes can be supplied including Galvanised, Zinc, Sherardized, Dacromet, Electroless Nickel, Geomet & PTFE.

Other Grade 8.8 Bolt manufacturers Omni, APL, Kundan, Deepak Fasteners, Unbrako, Sundaram Precision, Infasco, Caparo, EBY Fastener, SPAX®, GKW Etc.
Port of Dispatch Mumbai or Kalamboli ports in Maharashtra state of India
Why Jignesh Steel?
  • Wide International network : Western Europe, Eastern Europe, Middle East, Southeast Asia, North America, and South America
  • An Indian manufacturer, established in Year 2008
  • Pre-production BS 3692 grade 8.8 Fasteners sample before mass production
  • Best Price in India compared to Grade 8.8 Bolt manufacturers in China
  • Highly professional and technical team
  • Always final Inspection before shipment
  • High precision threads
MOQ 5 pieces
Preferred Grade 8.8 Nut Bolt Drawing Formats JPEG, PDF, CAD, STP, IGS
Ask for Test Certificates from Grade 8.8 Bolt manufacturers
  • Manufacturer Test Certificate (MTC) as per EN 10204 / 3.1,
  • 8.8 Grade Bolts Tensile testing to ISO 898-1
  • Suitability for preloading to EN 14399-2
  • Tri-Roll Thread Comparators
  • Suitability test for calibrated preload to EN 14399-10
  • Hardness testing to ISO 6508-1
  • Calibrated gauges and tools
  • High Tensile Class 8.8 Bolts Charpy Impact testing in accordance with ISO 148-1
  • Nut proof load testing to ISO 898-2
Free Samples Yes
Delivery time Regular product is about 7-15 days
Payment Terms T/T, Western Union, Paypal, L/C or Trade Assurance 30% deposit & balance before shipping
Grade 8.8 Steel Fasteners Application and Uses Industrial, Wind tower, Railway, Nuclear power, Construction, Electronic, and Automotive industry
Standard

Manufacturer of Grade 8.8 Bolt 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
  • ANSI B 28.2.4 1M
  • ANSI - American National Standards Institute
  • GB/T5783, GB/T5782, GB5783
  • American ASME
  • Indian IS
  • International ISO
  • American SAE
  • German DIN
  • Spanish CSN
  • British BS
  • Italian UNI
  • Polish PN
  • European EU
ISO - International Organization for Standardization
Find our dealers & distributors of Grade 8.8 Bolt Bangalore, Dubai, Noida, Melbourne, Mexico, Perth, New Delhi, Ahvaz, Port-of-Spain, Navi Mumbai, Kuala Lumpur, Santiago, Riyadh, Howrah, Surat, Lucknow, Abu Dhabi, Ranchi, Kuwait, Karachi, Tehran, Jakarta, Dhaka, Janeiro, Vung Granada, Sydney, Agra, Muscat, Houston, Nagpur, Chennai, Vapi, Indore, Kolkata, Mumbai, Sharjah, Shah Alam, Hyderabad, Seoul, Bogota, Ahmedabad, Rajkot, Ernakulam, Gurgaon, Kochi, Istanbul, Jamshedpur, Calgary, Coimbatore, Tau, Nashik, Doha, Panipat, Baroda, India, London, Mysuru, Brisbane, Lagos, Manama, Gimhae-si, Pimpri-Chinchwad, Khobar, Ludhiana, Bhubaneswar, Montreal, Gujarat, Caracas, Ankara, Courbevoie, Pune, Kanpur, Thiruvananthapuram, Patna, Vadodara, Thane, Singapore, Jaipur, Dammam, Bengaluru
Grade 8.8 Bolt manufacturers head marking
  • ATC (AUTOCRAFT), China
  • YFS (YFS FAN SHENG), Taiwan
  • LE (LAKE ERIE), USA
  • LPS (LAKSHMI PRECISION), India
  • MFL (MOHINDRA FASTENERS), India
  • NB (NINGBO FASTENER FACTORY), China
  • JDF (NINGBO JINDING), China
  • FKE (FWU KUANG), Taiwan
  • JH (JINN HER), China -Taiwan
  • JS (JIGNESH STEEL), India
  • THE (TONG HWEI), China -Taiwan
  • TVS (SUNDRAM), India
  • INFASCO, Canada

Calculate the ultimate strength of a bolt of class 8.8 grade

Tensile strength of 8.8 Grade bolts

Ft,Rd = k2 . fub .As / γM2

Shear strength of Grade 8.8 bolts

Fv,Rd = αv . fub . A / γM2

Combined shear and tension of Grade 8.8 Bolts

Fv,Ed / Fv,Rd + (Ft,Ed / Ft,Rd) / 1.4 ≤ 1.0

Bearing strength of bolts

Fb,Rd = k1 . αb . fu . d . t / γM2

Punching strength of bolts

Bp,Rd = 0.6.π . dm .tp . fu / γM2

where:

  • αv is a coefficient that takes values αv = 0.6 for bolt classes 8.8. When the shear plane passes through the unthreaded part of the bolt αv = 0.6.
  • k2 is a coefficient are the values k2 = 0.63 for 8.8 Grade countersunk bolts or k2 = 0.9 otherwise.
  • fub is the ultimate tensile strength of the Grade 8.8 bolt depending on the bolt class
  • As is the nominal tensile stress area of the BS 3692 grade 8.8 Bolt.
  • γM2 is the partial safety factor for the resistance of BS 4190 grade 8.8 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.
  • Fv,Ed is the applied shear load and Fv,Rd is the shear resistance of the Grade 8.8 bolt.
  • Ft,Ed is the applied tensile load and Ft,Rd is the tension resistance of the Grade 8.8 bolt.
  • fu is the ultimate tensile strength of the connected plate
  • d is the nominal diameter of Grade 8.8 bolt.
  • t is the thickness of the connected plate.
  • dm is the mean of the across points and across flats dimensions of Grade 8.8 bolt head or Grade 8.8 nut, whichever is smaller.
  • tp is the plate thickness under the Grade 8.8 bolt or 8.8 nut.
  • fu is the ultimate tensile strength of the steel plate.

Grade 8.8 Hex Bolts Dimensions

Manufacturing Grade 8.8 Flange Bolts and En 15048 Grade 8.8 Heavy Hex Bolts in DIN /ISO/ Imperial standard, Low Prices and great offers on special sizes

Grade 8.8 Heavy Hex Bolts Dimensions

 Grade 8.8 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

Types of Grade 8.8 Bolts

Manufacturer of 8.8 High Tensile Bolt and Nut in India, Medium Carbon Steel BS 4190 grade 8.8 Hsfg Bolts for high-pressure services

Grade 8.8 U Bolt

Grade 8.8 U Bolt

8.8 Grade Eye Bolt

8.8 Grade Eye Bolt

High Tensile Class 8.8 Hex Bolt

High Tensile Class 8.8 Hex Bolt

Grade 8.8 Steel Heavy Hex Bolt

Grade 8.8 Steel Heavy Hex Bolt

BS 3692 grade 8.8 Hex Head Bolt

BS 3692 grade 8.8 Hex Head Bolt

BS 4190 grade 8.8 Carriage Bolt

BS 4190 grade 8.8 Carriage Bolt

High Tensile 8.8 Grade Galvanized Bolt

High Tensile 8.8 Grade Galvanized Bolt

En 15048 Hsfg Grade 8.8 Hot Dip Galvanized Bolts

En 15048 Hsfg Grade 8.8 Hot Dip Galvanized Bolts

Grade 8.8 M16 Bolt

Grade 8.8 M16 Bolt

8.8 Grade M8 Bolt

8.8 Grade M8 Bolt

High Tensile Class 8.8 M10 Bolt

High Tensile Class 8.8 M10 Bolt

Grade 8.8 Steel Square Head T Bolt

Grade 8.8 Steel Square Head T Bolt

BS 3692 grade 8.8 Oval Head Bolt

BS 3692 grade 8.8 Oval Head Bolt

Full Thread BS 4190 grade 8.8 Hex Bolt

Full Thread BS 4190 grade 8.8 Hex Bolt

High Tensile 8.8 Grade Hexagon Bolt

High Tensile 8.8 Grade Hexagon Bolt

En 15048 Hsfg Grade 8.8 Flange Bolt

En 15048 Hsfg Grade 8.8 Flange Bolt

Grade 8.8 Plow Bolt

Grade 8.8 Plow Bolt

8.8 Grade Lag Bolt

8.8 Grade Lag Bolt

High Tensile Class 8.8 Structural Hex Bolts

High Tensile Class 8.8 Structural Hex Bolts

Grade 8.8 Steel Cup Head Bolt

Grade 8.8 Steel Cup Head Bolt

BS 3692 grade 8.8 Allen Bolt

BS 3692 grade 8.8 Allen Bolt

BS 4190 grade 8.8 CSK Bolt

BS 4190 grade 8.8 CSK Bolt

Grade 8.8 Fasteners Application

Exporter and supplier of M12 M16 M20 Grade 8.8 Bolts and Class 8.8 Galvanised Hex Head Bolt as per A153/A153M standard
  • Nuclear Energy Sector
  • Defence Industry
  • Sea Water Equipment
  • Offshore & Chemical Industry
  • Electrical & Agriculture Industry
  • Engineering & Aerospace Industry
  • Grade 8.8 Stud Bolt for Construction
  • High quality Grade 8.8 Petrochemical Fasteners
  • High Strength Grade 8.8 Bolts and Nuts for Automotive industry
  • Large size Grade 8.8 Bolts for Oil & Gas Industries
  • Metric Grade 8.8 Hex Bolts for Power Generation
  • Grade 8.8 Nut Bolt suitable for Off-Shore Oil Drilling
  • Heavy duty Grade 8.8 Fasteners for Heat Exchangers

PED approved supplier and govt. recognized Grade 8.8 Bolt manufacturer in India, check our delivery in the Middle East, Europe, Africa, and Far East Asia

Metric Class 8.8 Hex/ Allen Bolt UK, Thailand, Czechia, Malaysia, Germany
High Tensile Class 8.8 Hex Bolts Hungary, Finland, Bangladesh, USA, Malaysia
BS 3692 grade 8.8 Stud Bolt Philippines, Indonesia, Dubai, Belgium, Dammam -KSA
Hsfg Grade 8.8 Lag Bolt France, Thailand, Qatar, Europe, Singapore
BS 3692 Class 8.8 Structural Bolts Malaysia, Oman, UAE, Hong Kong, Argentina
High Tensile Grade 8.8 Bolt and Nut Austria, Chile, Italy, Indonesia, Singapore, Iran
Grade 8.8 Flange Bolts UAE, South Africa, Saudi Arabia (KSA), Brazil, Kuwait
En 15048 Grade 8.8 Heavy Hex Bolts Singapore, New Zealand, Bahrain, UAE, South Africa
8.8 High Tensile Bolt and Nut Philippines, Australia, Jakarta -Indonesia, Nigeria, UK
Medium Carbon Steel BS 4190 grade 8.8 Hsfg Bolts Ellington -United States, Poland, UK, Canada
M12 M16 M20 Grade 8.8 Bolts Singapore, Philippines, Canada, Vietnam, Malaysia
Class 8.8 Galvanised Hex Head Bolt Jordan, Turkey, Norway, UAE, Malaysia
A153/A153M class 8.8 grade bolt Morocco, Dubai, Netherlands, Malaysia, Russia
M24 Hexagonal Head Tensile Bolt Grade 8.8 Taiwan, Malaysia, Los Alamos -Mexico, Philippines
Grade 8.8 Bolt DIN 603 Hexagon UAE, Singapore, NY 12203 (USA), Malaysia, South Korea
DIN6921 Grade 8.8 Hex Flange Bolt UK, Spain, Vietnam, Mexico, Egypt
Carbon Steel Grade 4.8 Galvanized U Bolt Greece, United Kingdom -UK, Malaysia, Europe, UAE
Galvanize Grade 8.8 Hex Bolt Nut Set Japan, Europe, Portugal, Malaysia, Romania
DIN933 934 8.8 grade hex bolts and nuts M6-M36 M10 Denmark, Peru, Malaysia, Vietnam, Sweden, Colombia, China

Testing Tool & Equipment of Grade 8.8 Bolts

Calculate the ultimate strength of a bolt of class 8.8 grade, check ht bolt grade 8.8 specification, material equivalent, chemical composition
  • Coordinate Measuring Machine
  • Image measuring instrument
  • Routine inspection of calipers
  • Roughness tester used to test the surface finish of a Grade 8.8 Bolts and Nuts
  • Micrometer for accurate measurement of Grade 8.8 Bolt
  • Thread gauge and Smooth plug gauge used to check Grade 8.8 Nut Bolt quickly

Grade 8.8 Bolt Torque Chart

Bolt Diameter
(mm)
Recommended Bolt Torque
(Nm)
Class 8.8 Class 10.9
5 7 9
6 12 16
8 30 40
10 55 75
12 100 135
14 160 215
16 245 335
20 480 650

BS 3692 grade 8.8 Bolts Sizes

ASME B18.2.1 BS 4190 grade 8.8 Hex Head Bolt size (Inch Series)

BS 3692 grade 8.8 Bolts Sizes

Nominal or Basic Product Diameter E F G H J LT (Thread Length) Y
Body Diameter Width Across Flats Width Across Corners Head Height Wrenching Height For Bolt Lengths For Bolt 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

Grade 8.8 Galvanised Bolts

Metric Class ASTM Equivalent Can I Galvanize? Size Description Minimum Hardness Tensile strength, min Yield strength, min
8.8 ASTM A449 Yes 1⁄4" - 1"
11⁄8" - 11⁄2"
15⁄8" - 3"
Medium Carbon Steel,
Quenched and Tempered
C25
C19
B91
120
105
90
92
81
58
8.8 ASTM A193 B7 /A354 BC or F1554 G105 Yes 1⁄4" - 21⁄2"
25⁄8" - 4"
Medium Carbon Alloy Steel,
Quenched and Tempered
N/A 125
115
105
95
8.8.3 ASTM A325 Type 3 / A449 Type 3 Yes 1⁄2" - 11⁄2" Medium Carbon Steel,
Quenched and Tempered
C25 120 92

High strength Grade 8.8 bolts Size Range

Class, Grade and Material Size Range (mm) Mechanical Properties
Proof Load (MPa) Min. Yield Strength (MPa) Min. Tensile Strength (MPa)
Class 8.8 Bolt Medium carbon steel, quenched and tempered Size range below 16mm 580 MPa

640 MPa

800 MPa

16mm - 72mm 600 MPa 660 MPa 830 MPa

Chemical Composition of Grade 8.8 Hex Bolts

CLASS MATERIAL AND TREATMENT C C P S B TEMPERING TEMP. [C]
MIN MAX MAX MAX MAX
Grade 8.8 Bolt CARBON STEEL WITH ADDITIVES (E.G. B, MN OR CR) QUENCHED AND TEMPERED 0.15 (D) 0.4 0.025 0.025 0.003 425
CARBON STEEL QUENCHED AND TEMPERED 0.25 0.55 0.035 0.025

Mechanical Properties of 8.8 Grade Nut Bolt

Grades Size Range PS [MPa] YS (min) [MPa] TS (min) [MPa] Hardness [Rockwell]
Class 8.8 Bolt Under M16 580 640 800
17-72 600 660 830 C23–34

Grade 8.8 metric bolt dimensions

Class 8.8 Bolt Diameter x Pitch Thread Stress
Area mm2
*When μ = 0.10
Results in:
*When μ = 0.14
Results in:
Tightening Torque
Nm
Pre-load
kN
Tightening Torque
Nm
Pre-load
kN
M5 x 0.8 14.2 5.2 7.4 6.5 7.0
M6 x 1 20.1 9.0 10.4 11.3 9.9
M8 x 1.25 36.6 21.6 19.1 27.3 18.1
M10 x 1.5 58.0 43 30.3 54 28.8
M12 x 1.75 84.3 73 44.1 93 41.9
M14 x 2 115 117 60.6 148 57.5
M16 x 2 157 180 82.9 230 78.8
M18 x 2.5 192 259 104 329 99
M20 x 2.5 245 363 134 464 127
M22 x 2.5 302 495 166 634 158
M24 x 3 353 625 192 798 183
M27 x 3 459 915 252 1176 240
M30 x 3.5 561 1246 307 1597 292

Design properties and pitch thread for Grade 8.8 bolt

Dimensions Hole diameter d0 [mm] Areas Bolt Tensile resistance Ft,Rd [kN] High Tensile Bolt Shear resistance per shear plane Fv,Rd [kN] 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
8.8
Class
10.9
Class
8.8
Class
10.9
         S235                   S275                   S355         
M5 5 8 - - - - 19.6 14.2 8.18 10.2 5.45 5.68 4.68 5.59 6.37
M6 6 10 - - - - 28.3 20.1 11.6 14.5 7.72 8.04 5.85 6.99 7.96
M7 7 11 - - - - 38.5 28.9 16.6 20.8 11.1 11.6 6.43 7.68 8.76
M8 8 13 - - - - 50.3 36.6 21.1 26.4 14.1 14.6 7.60 9.08 10.35
M10 10 16 - - - - 78.5 58.0 33.4 41.8 22.3 23.2 9.36 11.18 12.74
M12 12 18 13 15 16x 13 30.0x 13 113 84.3 48.6 60.7 32.4 33.7 10.53 12.57 14.33
M14 14 21 15 17 18x 15 35.0x 15 154 115 66.2 82.8 44.2 46.0 12.28 14.67 16.72
M16 16 24 18 20 22x 18 40.0x 18 201 157 90.4 113.0 60.3 62.8 14.04 16.77 19.11
M18 18 27 20 22 24x 20 45.0x 20 254 192 110.6 138.2 73.7 76.8 15.79 18.86 21.49
M20 20 30 22 24 26x 22 50.0x 22 314 245 141.1 176.4 94.1 98.0 17.55 20.96 23.88
M22 22 34 24 26 28x 24 55.0x 24 380 303 174.5 218.2 116.4 121.2 19.89 23.75 27.07
M24 24 36 26 30 32x 26 60.0x 26 452 353 203.3 254.2 135.6 141.2 21.05 25.15 28.66
M27 27 41 30 35 37x 30 67.5x 30 573 459 264.4 330.5 176.3 183.6 23.98 28.64 32.64
M30 30 46 33 38 40x 33 75.0x 33 707 561 323.1 403.9 215.4 224.4 26.90 32.13 36.62
M33 33 50 36 41 43x 36 82.5x 36 855 694 399.7 499.7 266.5 277.6 29.24 34.93 39.80
M36 36 55 39 44 46x 39 90.0x 39 1020 817 470.6 588.2 313.7 326.8 32.17 38.42 43.78
M39 39 60 42 47 49x 42 97.5x 42 1190 976 562.2 702.7 374.8 390.4 35.09 41.91 47.76

Grade 8.8 Bolt Price List

Products FOB Price US $
Alloy Steel Grade 8.8 Bolts US $0.01-$0.09/ Piece
Special Head Grade 8.8 High Tensile Flange Head Bolts US $0.50/ Kilogram
Class 8.8 HT Hexagon Head Bolts US $0.01/ Carton
Carbon Boron Steel F568 High Tensile Bolts 8.8 US $0.01-$0.30/ Piece
Metric Class 8.8 Hexagon Head Bolts US $0.01/ Piece
Carbon Steel High-Tensile Class 8.8 Bolts US $0.01-$0.02/ Piece
M12 X 30mm 8.8 High Tensile Bolt US $0.01-$0.03/ Piece
Hexagon 8.8 High Tensile Bolts US $0.0034-$0.53/ Piece
High Tensile Grade 8.8 Bolt US $0.005-$0.25/ Piece
Grade 8.8 High Tensile Bolt US $0.01-$0.10/ Piece
ASTM F568 High Tensile Bolts 8.8 US $0.01-$0.20/ Piece
High Tensile Bolts 8.8 US $0.01-$0.02/ Piece

Call us or send us an email to sales@jigneshsteel.com for more details. Always compare our price with other Grade 8.8 Bolt manufacturers in India or China

High Tensile Class 8.8 Bolt Equivalent Grade

Bolt Size Range Metric Class ASTM Equivalent Description Tensile strength, min Yield strength, min
Mpa ksi Mpa ksi
All 4.6 ASTM A307A Low or medium carbon steel 400 58 240 35
through 1" (M24) 5.8   Cold worked low or medium carbon steel 520 75 420 61
through 1" (M24) 8.8 ASTM A449 Heat treated medium carbon steel 830 120 660 96
above 1" (M24) 8.8 ASTM A193B7 /A354BC or F1554 G105 Heat treated medium carbon steel 830 120 660 96
through 1-1/2" (M36) 8.8.3 ASTM A325 Type 3 / A449 Type 3 Heat treated medium carbon weathering steel 830 120 660 96