SSWSC2B Series - #8 roofing tile screw, coarse thread, type 17 point, flat head, 305 stainless. SS3DSCB Series - #10 wood screw, coarse, type 17 point, flat head, 305 stainless steel. SSDTH Series - #7 deck screw, sawtooth threads for reduced torque, sharp point, trim head, 305 stainless steel