7/8-14 x 4 Grade 5 Hex Cap Screw Plain Domestic USA (15)

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1-8 x 2 1/2 Flat Socket Cap Screw Alloy

1-8 x 3 Socket Cap Screw Alloy

3/8-16 x 2 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (400) Nylon Insert Locknuts 18-8 Stainless Steel 7/8-14 x 4 Grade 53 8 16 x 2 1 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (400) . Grade 5 Hex Cap Screws are manufactured in the USA from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. 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