3/4 x 18 High Speed Long Boy (1/2" Shank) #8 6-Lobe Flat-Head Simpson Deck-Drive DWP Wood Screws 316 Stainless Steel 7/8-9 x 18 Socket Cap

3 4 x 18 High Speed Long Boy (1 2" Shank) #8 6 Lobe Flat Head Simpson Deck Drive DWP Wood Screws 316 Stainless Steel 7 8 9 x 18 Socket Cap 7 8 9 x 18 Socket Cap Screw Alloy 8 x 1 5 8 Simpson Self Drilling Fiber Cement Screws 410 SS Carton (1000) 3 4 x 18 High Speed Long Boy (1 2" Shank) Straight shank to 1 2” 1 2” reduced shank for sizes above 1 2” M2 high speed steel Sharp cutting edge to drill in many different materials: Mild Steel Cast Iron Aluminum Wood Extra length flute with continuous cutting edges for drilling deep holes and fast chip removal Reduced shank fits all drill motors with 1 2” chucks Non slip grip prevents the bit from spinning in the chuck