000 psi minimum is met for plain or zinc plated material

1 L9 USS Tension Flatwasher Yellow Zinc Plated Domestic USA (300)

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

1 1/8-7 x 10 Socket Cap Screw Alloy

7 for torsional strength and drill speed

7/16-14 x 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (200) 1 1/4-7 Grade 8 Hex Cap Screws Plain - Domestic USA 000 psi minimum is met7 16 14 x 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (200) . 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