#57 Heavy Duty Jobber Drill Bit

7/16-20 x 6 Hex Cap Screw SS 18-8 (A2)

Copper Silver brazing of carbide head

1 1/8-7 x 3 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (6)

1/2-20 x 2 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (300)

9/16-18 x 5 Grade 5 Hex Cap Screw Plain Domestic USA (25) Short Arm Hex Keys Alloy - Metric #57 Heavy Duty Jobber Drill9 16 18 x 5 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 120,000