7-18X1 1/4 Square Round Washer Pocket Hole Face Frame Fine Thread Type17 Partial Thread Plain (Pack Qty 8,000) BC-07F20DFQRW7P

Square Round Washer Pocket Hole Face Frame Fine Thread Type17 Partial Thread Plain

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.