1-8 x 6 Socket Set Screw Cup Point Alloy

7/16-14 x 5 1/2 Socket Cap Screw Alloy

1/4-28 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (450)

3/8-16 x 3 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (325)

5/8-18 x 1 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (175) Grade 2 Finished Hex Nuts Zinc Plated 1-8 x 6 Socket Set5 8 18 x 1 3 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (175) . 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