sewage and atmospheric conditions

8 x 2 1/2 Simpson Truss-Head Wood Screws - Square Drive 305 SS - Carton (1000)

1 1/8-12 x 3 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (12)

1/2 x 12 Titen HD Concrete Anchor Zinc Plated (20)

1/4-28 x 3 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

1/2-20 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) M22-2.50 Socket Cap Screws 12.9 Alloy Plain DIN 912 sewage and atmospheric conditions1 2 20 x 4 1 2 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