9/16-12 x 3 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (125)

Machine screw thread

9 x 3 Star Flat Decking Screws w/ Nibs W

1/2-13 x 2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

1/2-20 x 3 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (150) 1/2-20 Hex Cap Screws 18-8 Stainless Steel 9/16-12 x 3 1/2 Grade1 2 20 x 3 1 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (150) . 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