5/16-24 x 4 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (300)

25/64 Heavy Duty Drill Bit - Stubby Length

9/16-12 x 8 Socket Cap Screw Alloy

1 1/4-7 x 3 Flat Socket Cap Screw Alloy

1/2-13 x 1 1/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50) 5/16-18 Hex Tap Bolts Silicon Bronze 5/16-24 x 4 1/2 Grade1 2 13 x 1 1 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50) . 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