1 3/8 Flat Washer SS 18-8 (A2)

7 x 2 1/4 Simpson Trim-Head Wood Decking Screws - Square Drive 316 SS - 5 lbs Pack (690)

13/32 Heavy Duty Jobber Drill Bit

7/8-9 x 2 1/4 Hex Cap Screw SS 316 (A4)

3/4-10 x 9 Grade 5 Hex Cap Screw Zinc Plated

8 x 2 Simpson Bugle-Head Wood Decking Screws - Square Drive T17 316 SS - 1 lbs Pack (128) 1 1/4-12 Socket Cap Screws Alloy 1 3/8 Flat Washer SS8 x 2 Simpson Bugle Head Wood Decking Screws Square Drive T17 316 SS 1 lbs Pack (128) . 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. 316 stainless steel is ideal where superior corrosion resistance is required.