9/16-18 x 3 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

1/4-28 x 1 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (1600)

1/2-13 x 16 Socket Cap Screw Alloy

3/4-10 x 4 3/4 Hex Cap Screw SS 316 (A4)

1/4 x 3 Mushroom Spike 316 SS (100)

3/4-10 x 1 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) 3/4-16 Hex Cap Screws 18-8 Stainless Steel 9/16-18 x 3 1/2 Grade3 4 10 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