Lappkabel skindicht cable adaptors amp blanking plugs lappkabel 52003570 a steel conduit thread brass locknut nickel plated according to protection type din 46320 the nut is used when a glands thread has to be locked or if it is used in through holes on thin walled housings lappkabel 52003570 skindicht sm 42 hex locking nut 5x60mm