#6 and #8 screws use T-15 bit; #9, #10, and #12 use bit T-25 * Self-tapping, countersinking head; W-Cut thread design * One pail contains 850 screws * Climatek coated for all weather corrosion protection conforms with ICC#2442 * For use in wood, particle-board, cement fiberboard, plastic, and sheet metal