#21 Heavy Duty Jobber Drill Bit

5/16-24 x 5 Grade 8 Hex Cap Screw Plain Domestic USA (50)

#31 x 6 High Speed Aircraft Bit Cobalt

33/64 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank)

These are fully threaded hex cap screws (i

1/2-13 x 3 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (150) 3/4-10 Hex Cap Screws 18-8 Stainless Steel #21 Heavy Duty Jobber Drill1 2 13 x 3 3 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (150) . 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