5/8-18 x 8 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

7/16-20 x 1 Grade 5 Hex Cap Screw Plain Domestic USA (100)

3/4-10 x 2 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

7/16-20 x 6 Grade 5 Hex Cap Screw Plain Domestic USA (25)

1/2-20 x 2 1/4 Grade 8 Hex Cap Screw Plain Domestic USA (50)

3/4-10 x 5 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) 1/2-20 Button Socket Cap Screws Alloy 5/8-18 x 8 L9 Hex3 4 10 x 5 1 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) . 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