ProCrafter Flat Head Square Drive Wood Screw, 6 x 1-1/2" is a premium wood screw designed for durability and ease of use. Featuring a ProCrafter flat head with square drive, it includes countersinking nibs and secondary serrations to ensure a secure fit and clean finish. The zinc and yellow dichromate coating provides excellent corrosion resistance, making it suitable for various woodworking projects. Its Type 17 point is specially designed to cut threads in wood without the need for pre-drilling, preventing wood splitting while ing a coarse tapping screw thread and a long, sharp point for efficient fastening. Model Number: