5/8-18 x 3 Grade 5 Hex Cap Screw Plain Domestic USA (100)

1/4-28 x 5/8 Grade 8 Hex Cap Screw Plain Domestic USA (100)

9/16-12 x 2 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (25)

1-8 x 4 Grade 5 Hex Cap Screw Zinc Plated

5/8-11 x 3 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100)

3/4-10 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) 1/2 Hex Lag Screws Hot Dipped Galvanized 5/8-18 x 3 Grade 53 4 10 x 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 of