1 1/8-12 x 3 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (12)

3/8 x 2 1/2 Mushroom Spike Zinc Plated (25)

1 1/2-12 Nylon Insert Locknut Zinc Plated

5/16-18 x 2 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (600)

1-8 x 3 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (60)

5/8-11 x 4 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (80) 7/16-14 Socket Cap Screws Alloy 1 1/8-12 x 3 1/25 8 11 x 4 1 2 Grade 5 Hex Cap Screw Plain Domestic USA (80). 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