heat-treated alloy steel

7/8-9 x 4 Flat Socket Cap Screw Alloy

1-8 x 9 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (20)

8 x 1 5/8 Star Flat Decking Screws w/ Nibs W

7/16-14 x 5 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

5/8-11 x 3 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (25) 7/8-9 Grade 8 Hex Cap Screws Plain - Domestic USA heat-treated alloy steel5 8 11 x 3 1 4 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