Steel Type: Low carbon steel

3/4-10 x 24 A307 Grade A Carriage Bolt HDG

7/16 Heavy Duty Drill Bit - Stubby Length

3/4-16 x 1 1/2 Socket Cap Screw Alloy

7 x 1 5/8 Simpson Trim-Head Wood Decking Screws - Square Drive 305 SS - 1 lbs Pack (195) 1 1/2-6 Socket Cap Screws Alloy Steel Type: Low carbon steel7 x 1 5 8 Simpson Trim Head Wood Decking Screws Square Drive 305 SS 1 lbs Pack (195) . 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