5/16-18 x 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (1950)

5/8-11 x 2 1/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (200)

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5/16-24 x 1 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (1100)

7/16-20 x 3 1/4 Grade 8 Hex Cap Screw Plain Domestic USA (25)

1/2-20 x 1 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (50) 1 1/2-12 L9 Hex Cap Screws Yellow Zinc Plated - Domestic USA 5/16-18 x 1/2 Grade 81 2 20 x 1 1 4 Grade 5 Hex Cap Screw Plain Domestic USA (50). 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 of