SPAX 4581821001275 3/8 x 5" T-Star Drive Washer Head Black HCR (Exterior) PowerLag Screw (25 Pieces per Box)

T-Star Washer Head Screw: These T-star Washer Head screws are made of carbon steel and feature High Corrosive resistant (HCR) coating which makes these screws ideal for use in treated lumber and exterior applications | Grade 5 Durability: SPAX T-star Screws heat treated to improve strength and reduce breakage. These superior quality screws are great for both interior and exterior applications | Patented Thread Technology: Featuring SPAX patented thread technology; these wood screws require no pre-drilling; and drive faster and easier than conventional lags and other structural lag screws. T-Star plus head provides superior bit engagement | Built-on Washer Head: The corrosion resistant screws feature low profile built-on washer head design for a contemporary and sleek finish installation and eliminate the need and extra cost of a separate washer | Dimensions: 3/8 x 5 T-star Drive Washer Head HCR PowerLag; Drive Bit Size: T-50. Thread Type: Partial. 25 Pieces Per Box