Kreg's most common screw head type is the Maxi-Loc which is a washer head screw The large bearing surface of the washer head is designed to seat securely in the bottom of the pocket, providing a tremendous amount of consistent clamping force on the joint line Stainless steel finish for weather resistance allowing screws to be used to exterior applications For use with hardwoods Size: 1-1/4" Thread: Fine Head Style: Washer Count 1000