5/16-18 x 4 Grade 5 Hex Cap Screw Plain Domestic USA (50)

1/2-20 x 1 1/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (450)

Send back what you don’t want or need

3/8 L9 USS Tension Flatwasher Yellow Zinc Plated Domestic USA (3300)

5/16-24 x 2 1/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100) 9/16-12 Grade 5 Hex Cap Screws Plain - Domestic USA 5/16-18 x 4 Grade 55 16 24 x 2 1 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100) . 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