The stainless-steel Bugle-Head Wood screw provides superior corrosion resistance while fastening all types of wood decking, including cedar, redwood and preservative-treated woods (non-hardwood). The 6-lobe drive recess provides for a secure bit which reduces cam-outs and leads to longer bit life. The bugle-head feature engineered for flush countersinking yields beautiful fastening results for a more concealed, professional finish. Bugle-Head Wood Screw, 6-Lobe Drive — #10 x 2-1/2 in. T-25, Type 305 (1 lb.) (Pack of 10).