7-18X1 1/4 Square Round Washer Pocket Face Frame Fine Thread Type17 Partial Thread Zinc (Pack Qty 7,000) BC-07F20DFQRW17

An externally threaded fastener with a dome-shaped head with a square recess and an integrally formed washer. The shank has an unthreaded section directly below the head, a fine thread pitch and a chip cavity cut out where the final several threads, ending at the tip. The fine thread variety is designed for use in hardwoods such as cherry or oak. The round washer head provides the maximum bearing surface to fasten it tightly into the pocket. These are also referred to as “pocket hole” screws due to the type of hole int Such fastening methods don’t require access to the inside of the joint to make repairs or adjustments.