#21 Heavy Duty Drill Bit - Stubby Length

1-8 x 13 Socket Cap Screw Alloy

9/16-18 L9 Hex Nut Alloy Cadmium Yellow and Wax Coated Domestic USA (25)

3/8-16 x 3 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (400)

9/16-18 x 6 Hex Cap Screw SS 18-8 (A2)

1/4-28 x 3 Grade 5 Hex Cap Screw Plain Domestic USA (100) Hanger Bolt Drivers #21 Heavy Duty Drill Bit1 4 28 x 3 Grade 5 Hex Cap Screw Plain Domestic USA (100). 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 120,000