1/4 x 2 1/2 Mushroom Spike 316 SS (100)

Brighton Best manufactures L9® nuts from AISI alloy steels

5/8-11 x 7 Hex Cap Screw SS 18-8 (A2)

9/16-12 x 2 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

9/16-12 x 1 1/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) 1-8 Flat Socket Cap Screws Alloy 1/4 x 2 1/2 Mushroom9 16 12 x 1 1 4 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