1/2 x 4 Mushroom Spike Zinc Plated (25)

7/8-9 x 6 Socket Cap Screw Alloy

Penetrate the hardest wood products with ease

Ideal for securing clips used in standing seam roofing

1/4-28 x 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (100) M24-3.0 Hex Cap Screws 8.8 DIN 931 Zinc Plated 1/2 x 4 Mushroom Spike1 4 28 x 3 4 Grade 5 Hex Cap Screw Plain Domestic USA (100). 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