GRK 01101 #9x2-1/2 Star Drive Bugle Head Climatek Coated Steel R4 Multi-Purpose Screws, 1150/Box

Self-tapping, countersinking head; w-cut thread design #6 and #8 screws use T-15 bit; #9, #10, and #12 use bit T-25 Climatek coated for all weather corrosion protection conforms with ICC#2442 ESR-3201 W-cut thread design acts as a saw blade providing clean cuts through all wood and fibrous materials; reducing the need for predrilling Pressure treated lumber, cedar and redwood use #9-Gauge or #10-Gauge on deck boards. For southern yellow pine use #10-Gauge