Simpson Strong-Tie SDWS22900-RP1 9" Length 0.750" Head Diameter 0.220" Shank Diameter T40 6-Lobe Drive Low Profile Head Serrated Threads 2-3/4" Thread Length SawTooth™ Point Black E-coat® Electrocoating Strong-Drive® SDWS TIMBER Screw (Interior Grade) (1 ct)