Conform to ASTM F837

1/4 x 2 1/2 Nailon™ Anchor Mushroom Zinc Plated (100)

5/8-11 x 7 Grade 8 Hex Cap Screw Yellow Zinc Plated

1/4 x 2 Mushroom Spike Zinc Plated (100)

3/8-16 x 3 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (50) 1/2-13 Grade 8 Hex Cap Screws Yellow Zinc Plated Conform to ASTM F8373 8 16 x 3 1 4 Grade 5 Hex Cap Screw Plain 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