Blind hole fixing spacers in Nylon 6//6 designed to fit a 7.9mm hole, with varying stand-off heights. The specifically designed blunt tip allows for maximum grip in the blind hole whilst significantly reducing protrusion in pass-through applications. The flexible ribs give superior grip in wood, metal, particle board and rubber and will lock into round threaded, punched or drilled blind holes, with a simple press-fit action. The locking bayonet head, snap locks into a standard 4mm hole in 1.57mm board.