9/16-12 x 1 Grade 8 Hex Cap Screw Plain Domestic USA (350)

3/4-10 x 2 Socket Cap Screw Zinc

9 x 3 Star Flat Decking Screws w/ NIBS Yellow Zinc Plated T17 - Carton (2000)

5/16 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (100)

5/8-11 x 12 A307 Grade A Carriage Bolt Zinc Plated

7/16-14 x 1 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (500) 1 1/4-7 Grade 8 Hex Cap Screws Plain - Domestic USA 9/16-12 x 1 Grade 87 16 14 x 1 1 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (500) . 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