and in two head styles

9/16-18 x 2 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (175)

5/8-11 x 3 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (25)

1/4-20 x 3/4 Grade 8 Hex Cap Screw Plain Domestic USA (100)

3/4-10 x 1 1/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (140)

3/4-10 x 3 1/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) 1/4-20 Socket Cap Screws Alloy and in two head styles3 4 10 x 3 1 4 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