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

1/2-13 x 16 Socket Cap Screw Alloy

8 x 2 Simpson Bugle-Head Self-Drilling Screw - Square Drive 410 SS - Carton (1000)

1 1/4-7 L9 Hex Collar Locknuts Cadmium Yellow & Wax Coated Domestic USA (6)

3/4-16 x 2 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (90)

1/2-13 x 3 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50) Phillips Trim-Head Sharp Point Drywall Screws Black Phosphate 1/4 x 4 Mushroom Spike1 2 13 x 3 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 of