7/8-9 x 6 1/2 Hex Cap Screw SS 316 (A4)

5/8-18 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

5/8-11 x 5 Flat Socket Cap Screw Alloy

7/8-14 x 3 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (50)

Special flute design improves penetration without blowback or compacting

7/8-9 x 2 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (60) Phillips Flat Undercut Machine Screws Black Zinc Plated 7/8-9 x 6 1/2 Hex7 8 9 x 2 3 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (60) . 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