5/16-18 x 4 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (300)

1/4-28 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (400)

7/8-9 x 8 Grade 8 Hex Cap Screw Yellow Zinc Plated

7/8-9 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated

0 x 230 Hex Cap Screw 8

3/4-16 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (45) M24-3.00 Socket Cap Screws 12.9 Alloy Plain DIN 912 5/16-18 x 4 1/2 Grade3 4 16 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (45) . 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