5/8-18 x 1 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

1-8 x 3 Grade 8 Hex Cap Screw Yellow Zinc Plated

Ideal for securing clips used in standing seam roofing

3/8 x 3 1/2 Mushroom Spike Zinc Plated (25)

316 stainless steel is ideal where superior corrosion resistance is required

3/8-24 x 1 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (600) 18" Aircraft Bits - Fractional 5/8-18 x 1 L9 Hex3 8 24 x 1 3 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (600) . 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