#3 Heavy Duty Drill Bit - Stubby Length

3/16 x 1 1/4 Mushroom Spike Zinc Plated (100)

5/8-11 x 2 1/4 Hex Cap Screw SS 316 (A4)

1-8 x 3 1/4 Grade 5 Hex Cap Screw Zinc Plated

3/4-10 x 5 1/2 Socket Cap Screw 18-8 (A2) Stainless Steel

5/8-18 x 1 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) 1 1/2-12 Socket Cap Screws Alloy #3 Heavy Duty Drill Bit5 8 18 x 1 Grade 5 Hex Cap Screw Zinc Plated 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