GRK Fasteners R4 No. 9 X 3-1/8 in. L Star Coated W-Cut Multi-Purpose Screws 720 pk (Pack of 2)Handy contractor pack of 720 ea. #9 x 3 1 8" multi purpose screws no splitting CEE thread. Star head creates its own countersink hole. Use in all woodworking and plastic applications. Coated with Climatek corrosion protection. Transports dust from edge of screw hole. Zero stripping star drive head T25 bit included. Treated lumber approved. UPC: 628611121053 Manufacturer Part No: 121050 Brand Name: GRK Fasteners Length: 3 1 8 in. Callout Size: No. 9