5/16-18 x 5/8 Grade 5 Hex Cap Screw Zinc Plated
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5/16-18 x 5/8 Grade 5 Hex Cap Screw Zinc Plated . Grade 5 Hex Cap Screws are manufactured from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Zinc plated material meets or exceeds ASTM F1941. Typical hardness on diameters 1/4 to 1 inch is HRC 25-34. On diameters over 1 inch to 1 1/2 hardness will range from HRC 19-30. Tensile strength for diameters 1/4 to 1 inch is a minimum of 120,000 psi and for diameters over 1 inch to 1 1/2, 105,000 psi.
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All of our item images are accurate representative images of the product category, however, due to the limitless variations in thread patterns, finishes, and other variables that exist with fasteners, bits and cutting tools, they are representative images only.