7 x 3 Simpson Trim-Head Wood Decking Screws – Square Drive 305 SS – 1 lbs Pack (98)

7 x 3 Simpson Trim-Head Wood Decking Screws – Square Drive 305 SS – 1 lbs Pack (98) . 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