The Hillman Star All Purpose Screw is used for interior and exterior applications from decking to flooring. It comes with serrated threads to increase the screw's drawing strength and reduces the friction on the screw shank that lowers the drive torque. This Hillman Star All Purpose Screw features a sharp point for easy starting and effortless drilling.Features 6 point star drive system eliminates cam out Size 1.75 inch x 8 Threads for reduced drive torque Specifications Size: 1.75" x 8 Weight: 5 lb Dimensions: 5.48" x 4.53" x 4.53" Thread Type: Coarse Type: Phillips