✦ Washer head style
✦ For hardwood to hardwood applications
✦ #7 square drive recess fine thread
✦ 1-1/4" screw
✦ Recommended material thick: 3/4"
✦ Square-drive prevents bit slipping while driving
✦ Flat-bottom head seats firmly in pocket hole
✦ Smooth shank draws the joint together
✦ Self-tapping tip drills its own hole without splitting