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When selecting a nut to be used for a graded hex cap screw, keep in mind that the nut should have the same grade as the bolt/screw. For instance, a Grade 2 Hex Cap Screw should only utilize a Grade 2 hex nut
Hex Cap Screws (also called hex head cap screws, hex bolt, or hex head bolt) Manufactured to ASME B18.2.1 and SAE J429 specifications
Features a thick, hexagonal head with chamfered threads
Washer face under the head to provide ample bearing surface when tightened with a wrench
Made from low carbon steel. You will notice that it’s hexagon head surface is smooth with no markings
Tensile Strength 74,000 psi. (1/4 thru 3/4 diams, less than an equal to 6 inches) - 60,000 psi. (1/4 – 3/4 diams, greater than 6 inches & 7/8 thru 1.5 inch diams)
