Meets ASTM C1002 for attaching gypsum board to wood or steel studs

7/8-9 x 8 Grade 5 Hex Cap Screw Zinc Plated

5/8-18 x 3 Socket Set Screw Cup Point Alloy

1/2-13 x 6 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (20)

7/8-14 x 3 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (15) 3/8-16 Hex Tap Bolts Silicon Bronze Meets ASTM C1002 for attaching7 8 14 x 3 3 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (15) . 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