1/4 x 1 1/2 Mushroom Spike Zinc Plated (100)

1/4 x 1 1/4 Mushroom Spike 316 SS (100)

3/4-16 x 1 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (150)

5/8-11 x 11 Grade 8 Hex Cap Screw Yellow Zinc Plated

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

7/8-14 x 6 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (15) 7/8-14 Grade 5 Hex Cap Screws Plain - Domestic USA 1/4 x 1 1/2 Mushroom7 8 14 x 6 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (15) . 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