OVERVIEW: Quik Drive CB3BLG158S Fiber Cement Board 1 5/8-inch Screw with type 17 point. Coarse threads with nibs under the head for easier countersinking. Screws are wire size #10 and have a #3 undersized square drive head (uses BIT3SU bits) and has a .375-inch ribbed wafer head. Great for Tile underlayment. Used in Quik Drive tools; PROLDH, PROCGB. 1500 screws per box. KEY FEATURES: Coarse threads with type 17 point C-3 Mechanically Galvanized Nibs under head for countersinking Used in Quik...