1/4-20 x 1 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100)

5/16-18 x 3 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

Coarse threads run approximately 2/3 up the shank to help draw the decking tightly to the substrate

5/16-24 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50)

3/8-24 x 2 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

5/16-18 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100) M20-2.50 Hex Cap Screws DIN 933 18-8 Stainless Steel (A2) 1/4-20 x 1 3/4 Grade5 16 18 x 2 Grade 5 Hex Cap Screw Zinc Plated 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