ITW Ramset M100BB Shank Pin, Powerpoint Step TYPE, 1/8/0.15 IN Shank Diameter, 1 IN Shank Length, 0.3 IN Head, Pointed Tip Style, Premium Steel And Hard Concrete Pin, Round Shank, 1/2 IN Washer, For Use With 721/R25, Rocket, D60/D45A, SA270, XT540, Cobra, RS22/HD22 Application