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Grade B8 304 Heavy Hex Head Cap Screws

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Made in U.S.A

Hex heads are manufactured by Robbins Mfg. Co. and nuts by Robbins Mfg. Co., Texas Bolt Co., and SPS-Non-ferrous. All hex heads are made of 304 stainless steel. Heads are marked with Robbins "R" trademark and "B8". Finished and heavy nuts are made to ASTM A194 specifications and stamped with manufacturer's trademark and "8" or "8M". Some finished nuts are also stamped "304" or "316".

Chemicals and physicals available showing compliance to ASTM specifications.
  • Material to ASTM A193 grade B8 specification and to ASTM A194 grade 8/8M specification.
  • Dimensions on ANSI/ASME B18.2.2, threads to ANSI/ASME B1.1.
  • Manufacturing process, mechanical properties, hardness, and marking to ASTM A193 and ASTM A194.
  • Testing to ASTM A370 specification.




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  Results 1 - 25 of 46 1 2 

Item #

Description

Thread Size

Length

item-5546 Grade B8 304 Heavy Hex Head Cap Screw, 1-1/4" 3/8-16 1-1/4 in
item-5547 Grade B8 304 Heavy Hex Head Cap Screw, 1-1/2" 3/8-16 1-1/2 in
item-5548 Grade B8 304 Heavy Hex Head Cap Screw, 1-3/4" 3/8-16 1-3/4 in
item-5549 Grade B8 304 Heavy Hex Head Cap Screw, 2" 3/8-16 2 in
item-5550 Grade B8 304 Heavy Hex Head Cap Screw, 2-1/4" 3/8-16 2-1/4 in
item-5551 Grade B8 304 Heavy Hex Head Cap Screw, 2-1/2" 3/8-16 2-1/2 in
item-5552 Grade B8 304 Heavy Hex Head Cap Screw, 2-3/4" 3/8-16 2-3/4 in
item-5553 Grade B8 304 Heavy Hex Head Cap Screw, 3" 3/8-16 3 in
item-5554 Grade B8 304 Heavy Hex Head Cap Screw, 3-1/4" 3/8-16 3-1/4 in
item-5555 Grade B8 304 Heavy Hex Head Cap Screw, 3-1/2" 3/8-16 3-1/2 in
item-5556 Grade B8 304 Heavy Hex Head Cap Screw, 3-3/4" 3/8-16 3-3/4 in
item-5557 Grade B8 304 Heavy Hex Head Cap Screw, 4" 3/8-16 4 in
item-5558 Grade B8 304 Heavy Hex Head Cap Screw, 1-1/4" 1/2-13 1-1/4 in
item-5559 Grade B8 304 Heavy Hex Head Cap Screw, 1-1/2" 1/2-13 1-1/2 in
item-5560 Grade B8 304 Heavy Hex Head Cap Screw, 1-3/4" 1/2-13 1-3/4 in
item-5561 Grade B8 304 Heavy Hex Head Cap Screw, 2" 1/2-13 2 in
item-5562 Grade B8 304 Heavy Hex Head Cap Screw, 2-1/4" 1/2-13 2-1/4 in
item-5563 Grade B8 304 Heavy Hex Head Cap Screw, 2-1/2" 1/2-13 2-1/2 in
item-5564 Grade B8 304 Heavy Hex Head Cap Screw, 2-3/4" 1/2-13 2-3/4 in
item-5565 Grade B8 304 Heavy Hex Head Cap Screw, 3" 1/2-13 3 in
item-5566 Grade B8 304 Heavy Hex Head Cap Screw, 3-1/4" 1/2-13 3-1/4 in
item-5567 Grade B8 304 Heavy Hex Head Cap Screw, 3-1/2" 1/2-13 3-1/2 in
item-5568 Grade B8 304 Heavy Hex Head Cap Screw, 3-3/4" 1/2-13 3-3/4 in
item-5569 Grade B8 304 Heavy Hex Head Cap Screw, 4" 1/2-13 4 in
item-5570 Grade B8 304 Heavy Hex Head Cap Screw, 1-1/2" 5/8-11 1-1/2 in
  Results 1 - 25 of 46 1 2 
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