GRSSFW516350-GRIP-RITE 5/16 X 3 PRIMEGUARD Plus Coated T-30 Star Drive Washer Head COARSE Thread Type 17 Point Structural Screw 50 Count

Type 17-point course thread for easy, quicker penetration into wood – no pre-drilling, Approved for use in treated lumber in exterior wood structural applicatio, Applications: Decking, Gazebos, Playground structures, Pergolas, and Trusses, Protected by Grip-Rite PrimeGuard Plus Lifetime Coating for improved corrosion resistance, Faster than lag screws in exterior structural wood applications