3/4-16 x 3 Hex Cap Screw SS 316 (A4)

With traditional toggle bolts

#44 Heavy Duty Drill Bit - Stubby Length

With solid surfaces

Specifications:

8 x 1 1/4 Simpson Bugle-Head Wood Decking Screws - Square Drive T17 316 SS - 1 lbs Pack (185) Flat Mushroom Toggle Bolts Zinc Plated 3/4-16 x 3 Hex Cap8 x 1 1 4 Simpson Bugle Head Wood Decking Screws Square Drive T17 316 SS 1 lbs Pack (185) . 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.