thicker diameter and additional thread

5/16-18 x 5 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (50)

Screws up to 1" in length are fully threaded

5/16-18 x 5/8 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

1/4-28 x 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (2700)

9/16-18 x 2 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (25) 1/4-20 L9 Hex Cap Screws Yellow Zinc Plated - Domestic USA thicker diameter and additional thread9 16 18 x 2 1 2 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