8 x 1 5/8 Simpson Bugle-Head Wood Decking Screws - Square Drive T17 316 SS - Bulk Pail (4000)

1/4-20 x 2 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (900)

5/16-24 x 3 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (50)

7 x 2 1/4 Simpson Trim-Head Self-Drilling Siding Screw - Square Drive 410 SS - Carton (4000)

1/4-20 x 3 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (550) 3/8 Hex Lag Screws 18-8 Stainless Steel 8 x 1 5/8 Simpson1 4 20 x 3 1 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (550) . 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