9/16-18 x 2 Grade 5 Hex Cap Screw Plain Domestic USA (225)

9/16-12 x 4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (150)

7/16-14 x 3 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (225)

3/4-10 x 5 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (20)

1/4-28 x 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

5/8-18 x 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (90) 1/4-20 Grade 5 Hex Cap Screws Zinc Plated - Domestic USA 9/16-18 x 2 Grade 55 8 18 x 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (90) . 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