The 52003400 is a Blind Plug with PG connection thread. The SKINDICHT? BL11 plug made of brass with nickel plated finish for closing pre-threaded holes. It can be assembled with screwdriver. The SKINDICHT? BL without O-ring, this blind plug is used wherever already existing housing holes are not yet required or no longer required. Blind plug model is equipped with a screwing slit, which makes installation significantly easier. The SKINDICHT? BL is qualified for using by machine-, apparatus construction and drives. It is ideal for machine/equipment and electric motor manufacturing industries.