Reid Supply Self-Tapping Thread Insert STI-20

Self tapping thread inserts are screwed into preformed or predrilled holes and cut their own threads into the wall for permanent installation. Eliminates the time and expense of tapping Our assortment of self tapping thread inserts are suitable for plastics, wood, and light metal alloys. . This self tapping threaded insert is made of Steel. The external thread diameter is .315 in and the internal thread size is N/A. For plastics and hardwood, it goes into a .279 in (approx) hole. For soft metals, it goes into a .287 in (approx) hole. The hole depth is .512 in. For use in plastics, light metal alloys and hard wood.