3/16 x 1 1/4 Mushroom Spike Zinc Plated (100)

1/2-13 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (250)

1 1/2-6 x 4 Socket Set Screw Cup Point Alloy

1-8 x 3 1/4 Grade 5 Hex Cap Screw Zinc Plated

5/8-18 x 1 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) 1 1/2-12 Socket Cap Screws Alloy 3/16 x 1 1/4 Mushroom5 8 18 x 1 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) . 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