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Square Head Bolt

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304/ 316 Stainless Steel Square Head Carriage Bolts & DIN 479 Screws manufacturer in India

Jignesh Steel, is a Square Head Bolt manufacturer. It is been manufactured by using high quality raw material and by the latest manufacturing technologies. It is being used in various industrial sectors such as agricultural, mechanical, constructional and automobile, etc. Square Bolts are usually utilized for aesthetic reason to match existing fasteners in an older structure or to provide a rustic look in a new structure. Stainless Steel Square Head Bolts are often ideal for applications which require exceptional impact resistance and high tensile strength. Square Head Lag Bolts are one of the toughest fasteners. It is very sturdy fasteners which are commonly used to joint heavy lumber or other heavy materials that are bearing a great load. Square Head Machine Bolts are used to fasten metal to metal, wood to wood and wood to metal. It is similar to hex cap but different in four ways i.e. it will be available in larger diameter size; its point will not be chamfered or rounded; and it will be manufactured to less exacting standards, it does not have an underhead washer bearing surface. It is used with nuts and internally threaded holes. It is a preferred fastener for fastening heavy wood members in structures. Square Head Stainless Steel Bolts is durable and it is used for a wide variety of purposes. It is inherently more resistant to corrosion and excellent to be used for heavy-duty equipment. Square Headed Bolts are commonly used in new construction across with taper washers and square plate washer. Its design allows a simple pull grip for nut tightening. Square Head Coach Bolts it also called as carriage bolt. It is type of bolt which is specifically designed to be utilized in woodworking. It has a feature shallow domed square head and it is specially to avoid loosening from one side and it also helps to avoid the bolt from being pulled through a wooden construction.

Jignesh Steel, offers a wide range of DIN 479 bolts which is available in various range of dimensions and sizes. It is being manufactured by using high quality raw material in order to fulfill the requirement and standard of our worldwide clients. DIN 479 is are in huge demands in industries of marine, mechanical, construction, and electrical. Our technical qualified team checks all the parameters of product quality. Our engineers precisely engineered it in a perfect designed that matches current industry standards. DIN 479 Square Head Bolts are most commonly used for aesthetic reason to match existing fasteners in an older structure or to offer a simple look in a new structure. It helps an easier wrench grip for tightening nut and provides a large bearing zone for positive gripping. It is usually used in new construction along with taper washers and square plate washer. In both new and old buildings there is also a need to mimic an older fastener creative.

Square Head Bolt

Square Head Bolt

Stainless Steel Square Head Bolts

Stainless Steel Square Head Bolts

Square Head Bolts and Nuts

Square Head Bolts and Nuts

Searching for Stainless Steel A4 Square Headed Bolts in Metric sizes? Manufacturer of Grade A4-70 Square Bolts including Machine/ Coach/ Carriage Bolts

Square Head Bolt

Table of contents

Stainless Steel Square Head Bolt Specifications

Finding Extra Fine UNEF threads M10 Square Head Bolt? Special price for 410/ 431/ 416/ 440C / 316/ 316L/ 304/ 304L Stainless Steel Square Head Metric Bolts in Mumbai

Square Head Bolt Size Metric
  • Dia: M10 - M110
  • Length: 12 - 1200MM
Square Head Bolt Size Inch
  • Dia: 1/2" - 4.0"
  • Length: 1/2" - 52"
DIN Standard DIN 479 Square Head Bolts
UTS - Unified Thread Standard UNC, UNF, NPT, UNS, UNEF, NPTF
Standard

Manufacturer of Square Head Bolt as per IS, ANSI, ASTM, DIN, ISO, JIS, GB, ASME, BS, UNI, CSN, EU, IFI, PN, and all International Standards

  • ANSI - American National Standards Institute
  • ANSI B 18.2.4 2M
  • ANSI B 28.2.4 1M
  • European EU
  • Italian UNI
  • Polish PN
  • British BS
  • German DIN
  • GB/T5783, GB/T5782, GB5783
  • American ASME
  • Indian IS
  • International ISO
  • American SAE
  • Spanish CSN
Finish/ Passivation of Stainless Steel Square Head Bolt Accordance to ASTM A380/A380M
SS Square Head Bolt British standards
  • BS 6105 a2-70
  • BS 6105 a4-70
  • BS 6105 a4-80
  • BS 6105 a2-50
Length 3 mm to 200 mm
Dimensions ASME B18.6.3 **Exception: Square Head Bolt 6 inches and shorter are fully threaded.
Metric Square Head Bolt Tolerances +/-0.01mm to +/-0.05mm
Stainless Steel Square Head Bolt Size
  • Cold Forming process: M2-M24
  • Hot Forging process: M24-M100, 1-1/2” Dia, up to 1100mm lg
  • CNC Machining for M100 / 4” Dia, up to 1500mm lg

Manufacturing 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 Stainless Steel Square Head Bolt
Head drive Phillips/Slot, Phillips, Slotted, Six-Lobe, etc
Square Head Bolt Surface Finish Zinc (yellow, blue, white, black), black oxide, Dacroment, anodizing, plated zinc-nickel, nickel plated, Geometry, Stainless steel: Passivated, Self-Colour, Hot Dip Galvanised (HDG), Sherardized, Bright Zinc Plated (BZP), Mechanically Applied coating and some special one like DACROMET
Manufacturing process of SS Square Bolts Wire Drawing, Insert tapping, Cold Heading and Heat Treatment, TPI/ Inspection, Surface Plating, Packing and Shipping
Material Origin Stainless Steel Square Head Bolt are Western European. Eastern origin possible on request.
Stainless Steel Square Head Bolt 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
Stainless Steel Square Head Bolt Surface Coating
  • Ptfe Coated Square Head Bolt
  • Hot Dipped Galvanized
  • Phosphate
  • Teflon
  • Xylon
  • Zinc Phosphate
  • Manganese Phosphate
  • Zinc Electro Plating (Hexavalent or Trivalent Chrome)
  • ZAC (Zinc Alluminium Flake Coating)
  • Cadmium

All Square Head Bolt surface finishes can be supplied including Galvanised, Zinc, Sherardized, Dacromet, Electroless Nickel, Geomet & PTFE.
Why Jignesh Steel?
  • An Indian manufacturer, established in Year 2008
  • Wide International network : Western Europe, Eastern Europe, Middle East, Southeast Asia, North America, and South America
  • Best Price in India compared to Square Head Bolt manufacturers in China
  • Highly professional and technical team
  • Always final Inspection before shipment
  • Pre-production Square Head Bolt sample before mass production
  • High precision threads
Free Samples Yes
Common Square Head Bolt material grades
  • Stainless Steel Square Head Bolt: 304, 316, 316L, 2205, 410, 431, 416, 440C, 18-8, 4.8, 8.8, A2, A4, A2-50, A2-70, A2-80, A4-50, A4-70, A4-80, A193 B8M, A193 B6, A193 B7m, A193 B8 Square Head Bolt
  • Carbon Steel Square Head Bolt : A193 Grade B7, A320 L7
  • Alloy steel Square Head Bolt: SCM435, C10B21, C10B33, ASTM A193 Grade B16
  • High Tensile Square Head Bolt: 10.9 Grade, 12.9 Grade, 8.8 Grade Square Head Bolt
  • Brass Square Head Bolt: C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200CuZn37), C28000(CuZn40)
  • Bronze Square Head Bolt: C51000, C52100, C54400 etc
  • Aluminum Square Head Bolt: Al6061, Al6063 etc
  • Titanium Square Head Bolt: TAD, TA1-TA8, TB2, TC1-TC10
Square Head Bolt Surface treatment
  • Polish
  • Anodizing
  • Passivation
  • Black oxide coating
  • Hot dip galvanized
  • Sand blasting
  • Heat-disposing
  • Rust preventive oil
  • Electroplating color (blue, black zinc, white, Ni, Cr, copper, tin, silver)
Top Manufacturers Omni, APL, Unbrako, Kundan, Deepak Fasteners, Sundaram Precision, Infasco, Caparo, EBY Fastener, SPAX® Screws, GKW Etc.
Stainless Steel Square Head Bolt marking and Packing
  • Square Head Bolt Marking as per product specification
  • Wooden Pallet, Canton, Carton / Small Box or as required
  • Carton size : 36* 24 *16 CM & 36 *24 *12 CM  or as required
  • Pallet size: Standard Euro Pallet 110* 80 *90 CM
MOQ 5 pieces
Preferred Square Head Bolt Drawing Formats JPEG, PDF, CAD, STP, IGS
Ask for Test Certificates from Square Head Bolt manufacturers
  • Manufacturer Test Certificate (MTC) as per EN 10204 / 3.1,
  • Square Head Bolt Tensile testing to ISO 898-1
  • Hardness testing to ISO 6508-1
  • Suitability for preloading to EN 14399-2
  • Tri-Roll Thread Comparators
  • Square Head Bolt Charpy Impact testing in accordance with ISO 148-1
  • Suitability test for calibrated preload to EN 14399-10
  • Nut proof load testing to ISO 898-2
  • Calibrated gauges and tools
Delivery time Regular product is about 7-15 days, custom product will according to special requirement
Port of Dispatch Mumbai or Kalamboli ports in Maharashtra state of India
Square Head Bolt Application and Uses Industrial, Oil & Gas, Wind tower, Petrochemical, Nuclear power, Sugar, Construction, Food, Electronic, Railway, and Automotive industry
Payment Terms T/T, Western Union, Paypal, L/C or Trade Assurance 30% deposit & balance before shipping
ISO - International Organization for Standardization

Stainless Steel Square Head Bolt Price List

DIN /ISO/ Imperial standard Square Head Coach Screws for threaded fastening system, Buy directly from Stainless Steel Square Head Bolts manufacturer in India

Products FOB Price US $
A2-70 M8 Square Head Bolt US $0.01-$0.05/ Piece
m4 m6 m8 DIN603 square neck bolt US $0.01-$1.00/ Piece
1/4"-3" Carbon Steel Square Head Bolt US $0.01-$0.02/ Piece
Zinc Plated Stainless Steel Square Head Bolt US $0.01-$0.02/ Piece
Plain Square head bolt DIN479 US $0.05/ Piece
ASTM A307 Gr.A Square Bolt US $0.05/ Piece
Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 M8 Square Head Bolt US $0.05/ Piece
M4 stainless steel square head bolt US $0.01-$2.50/ Piece
DIN261 HDG M6 to M20 stainless steel square head bolt US $0.01-$0.10/ Piece

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

Types of Square Head Bolt

Manufacturer of Stainless steel grade A2-70 Square Head Lag Bolts in considerable torque and various sizes, get a free quote now

Square Head Bolts

Square Head Bolts

DIN 478 - Square Head Bolts

DIN 478 - Square Head Bolts

DIN 479 - Square Head Bolts

DIN 479 - Square Head Bolts

DIN 480 - Square Head Bolts

DIN 480 - Square Head Bolts

Square Head Machine Bolts

Square Head Machine Bolts

Grade 10.9 Square Head Bolt

Grade 10.9 Square Head Bolt

Stainless Steel Square Head Bolt Torque Chart

Square Head Bolt Size 18-8 Stainless Steel Square Head Bolt
Torque in-lbs		 316 Stainless Steel Square Head Bolt
Torque in-lbs		 Silicon Bronze Square Head Bolt
in-lbs		 Monel Square Head Bolt
in-lbs		 Brass Square Head Bolt
in-lbs		 2024-T4 Aluminum Square Head Bolt
in-lbs
4-40 5.2 5.5 4.8 5.3 4.3 2.9
4-48 6.6 6.9 6.1 6.7 5.4 3.6
5-40 7.7 8.1 7.1 7.8 6.3 4.2
5-44 9.4 9.8 8.7 9.6 7.7 5.1
6-32 9.6 10.1 8.9 9.8 7.9 5.3
6-40 12.1 12.7 11.2 12.3 9.9 6.6
8-32 19.8 20.7 18.4 20.2 16.2 10.8
8-36 22 23 20.4 22.4 18.0 12.0
10-24 22.8 23.8 21.2 25.9 18.6 13.8
10-32 31.7 33.1 29.3 34.9 25.9 19.2
1/4-20 75.2 78.8 68.8 85.3 61.5 45.6
1/4-28 94 99 87 106 77 57
5/16-18 132 138 123 149 107 80
5/16-24 142 147 131 160 116 86
3/8-16 236 247 219 266 192 143
3/8-24 259 271 240 294 212 157
7/16-14 376 393 349 427 317 228
7/16-20 400 418 371 451 327 242
Square Head Bolt Bolt Size 18-8 Stainless Steel Square Head Bolt
Torque ft-lbs		 316 Stainless Steel Square Head Bolt
Torque ft-lbs		 Silicon Bronze Square Head Bolt
ft-lbs 		Monel Square Head Bolt
ft-lbs		 Brass Square Head Bolt
ft-lbs		 2024-T4 Aluminum Square Head Bolt
ft-lbs
1/2-13 43 45 40 48.7 35.2 26
1/2-20 45 47 42 51 37 27
9/16-12 56 59 53 65 47 34
9/16-18 62 65 58 71 51 38
5/8-11 92 96 86 111 76 60
5/8-18 103 108 96 123 85 67
3/4-10 127 131 118 153 104 82
3/4-16 124 129 115 149 102 80
7/8-9 194 202 178 231 159 124
7/8-14 193 201 177 230 158 124
1 - 8 286 299 265 344 235 184
1 - 14 259 270 240 311 212 166

Square Head Bolts Dimension

Square Head Bolts Dimension

Standard Thread Lengths

Bolt lengths < 6": Thread length = (2 X diameter) + 1/4"
Bolt lengths > 6": Thread length = (2 X diameter) + 1/2"

Dimensions

Bolt Diameter D F C H
Body Diameter Width Across Flats Width Across Corners Height
Max Basic Max Min Max Min Basic Max Min
3/8 0.388 9/16 0.562 0.544 0.795 0.747 1/4 0.268 0.232
1/2 0.515 3/4 0.750 0.725 1.061 0.995 21/64 0.348 0.308
5/8 0.642 15/16 0.938 0.906 1.326 1.244 27/64 0.444 0.400
3/4 0.768 1-1/8 1.125 1.088 1.591 1.494 1/2 0.524 0.476
7/8 0.895 1-5/16 1.312 1.269 1.856 1.742 19/32 0.620 0.568
1 1.022 1-1/2 1.500 1.450 2.121 1.991 21/32 0.684 0.628
1-1/8 1.149 1-11/16 1.688 1.631 2.386 2.239 3/4 0.780 0.720
1-1/4 1.277 1-7/8 1.875 1.812 2.652 2.489 27/32 0.876 0.812
1-3/8 1.404 2-1/16 2.062 1.994 2.917 2.738 29/32 0.940 0.872
1-1/2 1.531 2-1/4 2.250 2.175 3.182 2.986 1 1.036 0.964
1-3/4*   2-9/16         1-3/16    
2*   2-15/16         1-5/16    

* ASME only defines head dimensions up to 1-1/2". Dimensions for 1-3/4 and 2" are approximate and not covered under the ASME dimensional specifications.

Dimensions per ASME B18.2.1 1996

DIN 478 - Square Head Bolts Dimension

DIN 478 - Square Head Bolts Dimension

*All measurements in millimeters (mm)*

d e s b k d1
M8 10 8 22 10 13.5
M10 13 10 26 13 16.5
M12 17 13 30 15 19.5
M16 21 16 38 20 25

DIN 479 - Square Head Bolts Dimension

DIN 479 - Square Head Bolts Dimension

*All measurements in millimeters (mm)*

d e s d2 k
M6 8 6 4 6
M8 10 8 5.5 8
M10 13 10 7 10
M12 17 13 8.5 12
M16 21 16 12 16
M20 28 22 15 20

DIN 480 - Square Head Bolts Dimension

DIN 480 - Square Head Bolts Dimension

*All measurements in millimeters (mm)*

d z3 d2 e=d1 s k
M10 2.5 7 13 10 13
M12 3 8.5 17 13 16
M16 4 12 22 16 20
M20 5 15 28 21 25

Square Head Machine Bolts Dimension

Square Head Machine Bolts Dimension

Nominal Size or Basic Product Diameter E F G H R L1
Full-Size Body Diameter Width Across Flats Width Across Corners Head Height Radius of Fillet Thread Length
for Bolt Lengths
6 in. and Shorter Over 6 in.
Max Min Basic Max Min Max Min Basic Max Min Max Min Nom Nom
1/4 0.2500 0.260 0.237 3/8 0.375 0.362 0.530 0.498 11/64 0.188 0.156 0.03 0.01 0.750 1.000
5/16 0.3125 0.324 0.298 1/2 0.500 0.484 0.707 0.665 13/64 0.220 0.186 0.03 0.01 0.875 1.125
3/8 0.3750 0.388 0.360 9/16 0.562 0.544 0.795 0.747 1/4 0.268 0.232 0.03 0.01 1.000 1.250
7/16 0.4375 0.452 0.421 5/8 0.625 0.603 0.884 0.828 19/64 0.316 0.278 0.03 0.01 1.125 1.375
1/2 0.5000 0.515 0.482 3/4 0.750 0.725 1.061 0.995 21/64 0.348 0.308 0.03 0.01 1.250 1.500
5/8 0.6250 0.642 0.605 15/16 0.938 0.906 1.326 1.244 27/64 0.444 0.400 0.06 0.02 1.500 1.750
3/4 0.7500 0.768 0.729 1-1/8 1.125 1.088 1.591 1.494 1/2 0.524 0.476 0.06 0.02 1.750 2.000
7/8 0.8750 0.895 0.852 1-5/16 1.312 1.269 1.856 1.742 19/32 0.620 0.568 0.06 0.02 2.000 2.250
1 1.0000 1.022 0.976 1-1/2 1.500 1.450 2.121 1.991 21/32 0.684 0.628 0.09 0.03 2.250 2.500
1-1/8 1.1250 1.149 1.098 1-11/16 1.688 1.631 2.386 2.239 3/4 0.780 0.720 0.09 0.03 2.500 2.750
1-1/4 1.2500 1.277 1.223 1-7/8 1.875 1.812 2.652 2.489 27/32 0.876 0.812 0.09 0.03 2.750 3.000
1-3/8 1.3750 1.404 1.345 2-1/16 2.062 1.994 2.917 2.738 29/32 0.940 0.872 0.09 0.03 3.000 3.250
1-1/2 1.5000 1.531 1.470 2-1/4 2.250 2.175 3.182 2.986 1 1.036 0.964 0.09 0.03 3.250 3.500
See Paras. 3.4,3.5 2.1.2   3.7

Stainless Steel Square Head Bolt Material and Grades

  • 18-8 Stainless Steel Square Head Bolt
  • 317L Stainless Steel Square Head Bolt
  • 316L Stainless Steel Square Head Bolt
  • A4-80 Square Head Bolt
  • 410 Stainless Steel Square Head Bolt
  • A2 Square Head Bolt
  • 4.8 Square Head Bolt
  • 18-8 Stainless Steel Square Head Bolt
  • ASTM A193 Grade B8M Square Head Bolt
  • 316 Stainless Square Head Bolt
  • 8.8 Square Head Bolt
  • 317 Stainless Steel Square Head Bolt
  • 321 Stainless Steel Square Head Bolt
  • ASTM A193 B8C Square Head Bolt (347)
  • Duplex 2205 Square Head Bolt
  • A4 Square Head Bolt
  • 310 Stainless Steel Square Head Bolt
  • ASTM A193 B8T Square Head Bolt (321)
  • ASTM A193 Grade B8 Square Head Bolt
  • 316 Stainless Steel Square Head Bolt
  • 304H Stainless Steel Square Head Bolt
  • 304 Stainless Steel Square Head Bolt
  • 347 Stainless Steel Square Head Bolt
  • 17-4 PH Square Head Bolt
  • ASTM A193 Grade B7m Square Head Bolt
  • A2-70 Square Head Bolt
  • A4-70 Square Head Bolt
  • ASTM A193 B6 Square Head Bolt (410)
  • 304L Stainless Steel Square Head Bolt
  • 904L Stainless Steel Square Head Bolt

Square Head Bolt Application

  • Pipeline connection
  • Nuclear Energy Sector
  • Chemical Industry
  • Petroleum Industries
  • Oil & Gas Industries
  • Defence Industry
  • Aerospace Industry

Stainless Steel Square Head Bolt Testing Tool & Equipment

  • Coordinate Measuring Machine
  • Micrometer
  • Smooth plug gauge
  • Routine inspection of calipers
  • Thread gauge
  • Image measuring instrument
  • Roughness tester
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