Sulfur: Maximum 0

1 1/8-7 x 6 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

9/16-18 x 2 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (25)

50 x 130 Socket Cap Screw 12

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

1/4-28 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100) 1 1/2-12 L9 Hex Cap Screws Yellow Zinc Plated - Domestic USA Sulfur: Maximum 01 4 28 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100) . 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