1 1/4 x 18 ITM SDS Plus Hammer Drill Bit X-Cutter

they are typically very short

1 1/4-7 x 10 A307A Hex Bolt Plain Steel

3/4-10 x 1 3/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (20)

10 x 3 Simpson Bugle-Head Wood Decking Screws - 6-Lobe Drive 305 SS - Deck Pack (350) 1 1/8-12 L9 Hex Cap Screws Yellow Zinc Plated - Domestic USA 1 1/4 x 18 ITM10 x 3 Simpson Bugle Head Wood Decking Screws 6 Lobe Drive 305 SS Deck Pack (350) . 6 lobe drive prevents driver bit cam out and stripping in recess. Type 17 tip provides fast starts and prevents splitting in hardwoods. Coarse threads run approximately 2 3 up the shank to help draw the decking tightly to the substrate. Pre drilling is recommended near board ends to prevent splitting. Drive Sizes: #6 T15 #8 T20 #10 T25