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A hex bolt, also known as a hex cap screw, is a type of fastener that has a hexagonal head shape and is made up of a solid rod of metal. The hex bolt is designed to be tightened using a wrench or socket, and its six-sided head allows for a more secure hold than a round or square head bolt.

Hex bolts are commonly used in construction, automotive, and manufacturing applications where a robust and reliable fastener is needed. They are available in various sizes, materials, and grades, each with specific properties and characteristics.

One of the main properties of a hex bolt is its threading. Threads are the spiral ridges that run along the length of the bolt and allow it to be screwed into a matching threaded hole or nut. Several threading patterns are used on hex bolts, including metric, imperial, and unified.

Metric hex bolts have a thread pitch measured in millimeters, while imperial hex bolts have a thread pitch measured in inches. Unified hex bolts have threads designed to be compatible with metric and imperial thread patterns.

The material of a hex bolt is another important property to consider. Hex bolts can be made from a variety of materials, including steel, stainless steel, brass, and titanium. Each material has its own unique properties and is best suited for certain applications.

Steel hex bolts are strong and durable, making them ideal for heavy-duty construction and industrial applications. Stainless steel hex bolts are resistant to corrosion and are often used in outdoor or marine environments. Brass hex bolts are softer and more malleable than steel bolts, making them ideal for applications where precision and accuracy are important. Titanium hex bolts are lightweight and strong, making them suitable for high-stress applications.

Hex Bolts

Hex bolts are also graded by their strength, which is measured in terms of their tensile strength. A hex bolt's tensile strength is the maximum force it can withstand before breaking. Hex bolts are commonly graded using the SAE J429 standard, which includes grades 2, 5, and 8. Grade 2 hex bolts are the weakest, while grade 8 hex bolts are the strongest.

In addition to their strength, hex bolts also have a number of other properties that can be important in certain applications. These include their coating, which can help protect the bolt from corrosion and wear, and their corrosion resistance, which determines how well the bolt can withstand exposure to the elements.

Overall, hex bolts are versatile and reliable fasteners that are widely used in a variety of applications. Their strength, durability, and wide range of sizes and materials make them an ideal choice for many different types of projects.

At our company, we take great care to ensure that our hex bolts are properly packaged and safely delivered to our customers. We use only the best packaging materials and techniques, and our team of experts carefully considers each order's size, weight, and destination to ensure that the hex bolts arrive in excellent condition. We also use additional protective measures, such as bubble wrap and foam inserts, to further safeguard the hex bolts during shipping. Our commitment to safety and customer satisfaction is reflected in our careful attention to every aspect of packaging and delivery.

Specification :-

Product name Stainless Steel Hex Bolts
Place of Origin India
Standard ISO 4017, DIN931, GB5783, DIN, ASTM, ANSI, JIS, EN, AS
DIN Standard B.S. DIN933 DIN931 DIN934 DIN912 DIN603 DIN6923
Surface treatment Passivation /plain
Stainless Steel Hex Bolts Size M2 - M100
Stainless Steel Hex Bolts Diameter M3-M60
Stainless Steel Hex Bolts Length 6mm-500mm
Head Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc
Neck type Hex, Square, Triangular, Oval & Knurled etc
Drive type Phil, Slotted, Hex socket, Torx & square slot etc
Stainless Steel Hex Bolts Application Wind tower, Nuclear power, Railway, Automotive industry, Construction, Electronic industry
Dimensions ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded.
Drive Style Type I
Stainless Steel Hex Bolts Material 18-8 Stainless Steel, stainless steel ss 304/ SS316 A2/A4, SS201, SS303, SS304, SS316, SS316L, SS904L, A2-70; A4-70; A4-80
Thread Requirements ASME B1.1, UNC & UNF, Class 2A (Fastenal will inspect and accept parts with a 1A no-go gauge)
Finish Per ASTM A380/A380M
Finishing Zinc Plated (Yellow, White, Blue, Black), Hop Dip Galvanized (HDG) phosphorization, Black Oxide, Geomet, Dacroment, anodization, Nickel plated, Zinc-Nickel plated, Brass Plated, Tin Plated, Black Plated, Copper Plated, Gold Plated, Salt fog test
Stock Products Stainless steel: All DIN, GB Standard and part ASNI standard stainless steel Hex Bolts, Example: ISO7380, DIN7981, DIN7982, DIN916, DIN913, DIN7985, DIN912
Production technology Cold Forged
Manufacturing Process Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing
MOQ 10 pieces
Delivery time Regular product is about 7-15 days, custom product will according to special requirement
Others OEM, ODM, ±0.03MM tolerance
Surface treatment of stainless steel Hex Bolts
  • Passivation
  • Polish
  • Anodizing
  • Sand blasting
  • Electroplating (color, blue, white, black zinc, Ni, Cr, tin, copper, silver)
  • Black oxide coating
  • Heat-disposing
  • Hot-dip galvanizing
  • Rust preventive oil
Coatings Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request
Tolerance of stainless steel Hex Bolts +/-0.01mm to +/-0.05mm
Samples Yes
Production Capacity 2,700,000 pieces per month
Payment Terms T/T, Paypal, Western Union, L/C or Trade Assurance 30% deposit & balance before shipping

How It Work?

Laboratory Tested
Quality Assurance
On Time Delivery
Shipping Globally
Best Services

Stainless Steel Hex Bolts Dimensions :-

Hex Bolts
Bolt Size A (max) B C (min) D E F
Thread Length
for Bolt Length
max min 6" and
shorter
over 6"
1/4" 0.260 7/16 0.484 11/64 0.03 0.01 0.750 1.000
5/16" 0.324 1/2 0.552 7/32 0.03 0.01 0.875 1.125
3/8" 0.388 9/16 0.620 1/4 0.03 0.01 1.000 1.250
7/16" 0.452 5/8 0.687 19/64 0.03 0.01 1.125 1.375
1/2" 0.515 3/4 0.826 11/32 0.03 0.01 1.250 1.500
5/8" 0.642 15/16 1.033 27/64 0.06 0.02 1.500 1.750
3/4" 0.768 1-1/8 1.240 1/2 0.06 0.02 1.750 2.000
7/8" 0.895 1-5/16 1.447 37/64 0.06 0.02 2.000 2.250
1" 1.022 1-1/2 1.653 43/64 0.09 0.03 2.250 2.500
1-1/8" 1.149 1-11/16 1.859 3/4 0.09 0.03 2.500 2.750
1-1/4" 1.277 1-7/8 2.066 27/32 0.09 0.03 2.750 3.000
1-3/8" 1.404 2-1/16 2.273 29/32 0.09 0.03 3.000 3.250
1-1/2" 1.531 2-1/4 2.480 1 0.09 0.03 3.250 3.500
1-3/4" 1.785 2-5/8 2.893 1-5/32 0.12 0.04 3.750 4.000
2" 2.039 3 3.306 1-11/32 0.12 0.04 4.250 4.500
2-1/4" 2.305 3-3/8 3.719 1-1/2 0.19 0.06 4.750 5.000
2-1/2" 2.559 3-3/4 4.133 1-21/32 0.19 0.06 5.250 5.500
2-3/4" 2.837 4-1/8 4.546 1-13/16 0.19 0.06 5.750 6.000
3" 3.081 4-1/2 4.959 2 0.19 0.06 6.250 6.500
3-1/4" 3.335 4-7/8 5.372 2-3/16 0.19 0.06 6.750 7.000
3-1/2" 3.589 5-1/4 5.786 2-5/16 0.19 0.06 7.250 7.500
3-3/4" 3.858 5-5/8 6.198 2-1/2 0.19 0.06 7.750 8.000
4" 4.111 6 6.612 2-11/16 0.19 0.06 8.250 8.500

Bolt Size A (max) B C (min) D E F
Thread Length
for Bolt Length
max min 6" and
shorter
over 6"
1/2" 0.515 7/8 0.969 11/32 0.03 0.01 1.250 1.500
5/8" 0.642 1-1/16 1.175 27/64 0.06 0.02 1.500 1.750
3/4" 0.768 1-1/4 1.383 1/2 0.06 0.02 1.750 2.000
7/8" 0.895 1-7/16 1.589 37/64 0.06 0.02 2.000 2.250
1" 1.022 1-5/8 1.796 43/64 0.09 0.03 2.250 2.500
1-1/8" 1.149 1-13/16 2.002 3/4 0.09 0.03 2.500 2.750
1-1/4" 1.277 2 2.209 27/32 0.09 0.03 2.750 3.000
1-3/8" 1.404 2-3/16 2.416 29/32 0.09 0.03 3.000 3.250
1-1/2" 1.531 2-3/8 2.622 1 0.09 0.03 3.250 3.500
1-3/4" 1.785 2-3/4 3.035 1-5/32 0.12 0.04 3.750 4.000
2" 2.039 3-1/8 3.449 1-11/32 0.12 0.04 4.250 4.500
2-1/4" 2.305 3-1/2 3.862 1-1/2 0.19 0.06 4.750 5.000
2-1/2" 2.559 3-7/8 4.275 1-21/32 0.19 0.06 5.250 5.500
2-3/4" 2.827 4-1/4 4.688 1-13/16 0.19 0.06 5.750 6.000
3" 3.081 4-5/8 5.102 2 0.19 0.06 6.250 6.500


Stainless Steel Heavy Hex Structural Bolt Dimensions :-

Bolt Size A B C D E
Radius of Fillet
F
Thread Length
G
Transitional
Thread Length
Runout of
Bearing Surface
FIM
max min min max min max
1/2" 0.515 0.482 7/8 0.969 5/16 0.031 0.009 1.00 0.19 0.016
5/8" 0.642 0.605 1-1/16 1.175 25/64 0.062 0.021 1.25 0.22 0.019
3/4" 0.768 0.729 1-1/4 1.383 15/32 0.062 0.021 1.38 0.25 0.022
7/8" 0.895 0.852 1-7/16 1.589 35/64 0.062 0.031 1.50 0.28 0.025
1" 1.022 0.976 1-5/8 1.796 39/64 0.093 0.062 1.75 0.31 0.028
1-1/8" 1.149 1.098 1-13/16 2.002 11/16 0.093 0.062 2.00 0.34 0.032
1-1/4" 1.277 1.223 2 2.209 25/32 0.093 0.062 2.00 0.38 0.035
1-3/8" 1.404 1.345 2-3/16 2.416 27/32 0.093 0.062 2.25 0.44 0.038
1-1/2" 1.531 1.470 2-3/8 2.622 15/16 0.093 0.062 2.25 0.44 0.041


SS Hex Bolts Size Chart :-

Diameter M12 M16 M20 M22 M24 M27 M30 M36
Length
30 49.1              
35 53.6              
40 58.0 105            
45 62.1 113 188          
50 66.6 121 200 257        
55 71.0 129 212 272        
60 75.4 137 225 286 362      
65 79.9 145 237 301 380      
70 84.3 153 249 316 398 532    
75 88.8 160 262 331 415 554 701  
80 93.2 168 274 346 433 576 728  
85 97.6 176 286 361 451 599 756 1184
90 102 184 298 375 467 621 784 1224
95 107 192 310 390 485 644 812 1264
100   199 322 405 503 665 838 1304
105   207 335 420 520 688 865 1336
110   215 347 435 538 710 893 1376
115   223 359 450 556 732 921 1415
120   231 372 465 574 755 949 1455
125   239 384 479 591 777 976 1495
130   247 396 494 609 800 1004 1535
135     409 509 627 822 1032 1575
140     421 524 645 845 1059 1615
145     433 539 662 867 1087 1655
150     446 554 680 890 1115 1695
155     458 569 698 912 1143 1735
160       584 716 935 1170 1775
165       599 733 957 1198 1815
170         751 979 1226 1855
175         769 1002 1254 1895
180         787 1024 1281 1935
185         804 1047 1309 1974
190         822 1069 1337 2014
195         840 1092 1365 2054
200           1114 1392 2094

SS Hex Bolts Weight Chart :-

Hex Bolts


Applications and Uses

  • Chemical Industries
  • Oil & Gas Industrires
  • Power Plant Industries
  • Shipbuilding Industries
  • Fertilizer Industrires
  • Petrochemical Industrires
  • Sugar Industrires
  • Cement Industrires