All material is manufactured with rolled threads

1 3/4-5 x 5 Socket Cap Screw Alloy

3/4-10 x 6 Socket Cap Screw Alloy

1/2-13 x 16 Socket Cap Screw Alloy

18% chromium and 8% nickel for good corrosion resistance

7 x 1 1/4 Simpson Trim-Head Wood Decking Screws - Square Drive 305 SS - 1 lbs Pack (256) 5/8-18 Grade 8 Hex Cap Screws Yellow Zinc Plated All material is manufactured with7 x 1 1 4 Simpson Trim Head Wood Decking Screws Square Drive 305 SS 1 lbs Pack (256) . The type 17 tip provides fast starting and resists splitting in hardwood. Coarse threads run approximately 2 3 up the shank to draw the decking tightly to the substrate. Pre drilling is recommended near board ends to prevent splitting. #1 Square Drive All #7 diameters and 9 x 3 1 2 #2 Square Drive 9 x 4