Dottie PHFWB101 - #10 x 1'' Phillips Flat Head Brass Wood Screw is designed for use with plywood, lumber, and other woods. This wood screw features aggressive threads for a high degree of grip strength, rust resistance, and a flush surface. With a WSSL thread type and flat head design, this screw has a thread pitch of 13 per inch and a driver size of #2. Each package contains 500 screws with a head diameter of 0.385'' - 0.340'' and a head height of 0.116''. The point type is gimlet, making it easy to drive into wood surfaces.