1/4-20 x 3 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (550)

5/16-18 x 3/4 Grade 8 Hex Cap Screw Plain Domestic USA (100)

7/8-14 x 5 Grade 5 Hex Cap Screw Zinc Plated

3/8-24 x 3 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (50)

1 1/4-7 x 2 1/4 Socket Cap Screw Alloy

1/2-20 x 4 Grade 5 Hex Cap Screw Plain Domestic USA (25) Short Arm Hex Keys Alloy 1/4-20 x 3 1/2 Grade1 2 20 x 4 Grade 5 Hex Cap Screw Plain 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 120,000