7/16 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (3500)

9/16-18 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100)

1 3/8-12 x 3 1/2 Socket Cap Screw Alloy

5/8-18 x 4 Hex Cap Screw SS 18-8 (A2)

5/8-18 x 2 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (125) 1-14 Grade 5 Hex Cap Screws Plain - Domestic USA 7/16 L9 SAE Tension Flatwasher5 8 18 x 2 3 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (125) . 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