1/4-28 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (450)

1/4-28 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50)

9/16-18 x 5 Grade 5 Hex Cap Screw Plain Domestic USA (25)

9/16-18 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

5/8-11 x 3 Socket Cap Screw 18-8 (A2) Stainless Steel

9/16-12 x 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100) 5/8-11 Button Socket Cap Screws Alloy 1/4-28 x 4 1/2 Grade9 16 12 x 4 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