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

3/4-10 x 6 Socket Cap Screw 18-8 (A2) Stainless Steel

7/16-20 x 5 Grade 5 Hex Cap Screw Plain Domestic USA (25)

1 1/4-7 x 6 1/2 Socket Cap Screw Alloy

5/8-11 L9 Hex Collar Locknuts Cadmium Yellow & Wax Coated Domestic USA (25)

7/8-14 x 1 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (85) Hex Washer Head Metal-Panel Screws 316 Stainless Steel Coarse threads run approximately 2/37 8 14 x 1 1 2 Grade 5 Hex Cap Screw Plain Domestic USA (85). 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