3/16 x 2 1/2 Mushroom Spike Zinc Plated (100)

5/16-24 x 1 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (1000)

Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications

3/4-16 x 6 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (60)

7/16-14 x 5 Grade 8 Hex Cap Screw Plain Domestic USA (25)

5/8-11 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (80) 1 1/2-12 L9 Hex Cap Screws Yellow Zinc Plated - Domestic USA 3/16 x 2 1/2 Mushroom5 8 11 x 4 1 2 Grade 5 Hex Cap Screw Zinc Plated 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