Hellermann tyton cable glands m12m16m20sm20 m25m32m40m50m63 hellermann tyton ngm40 blk this black m40 cable gland 22 32mm from hellerman tyton has been designed for connecting cable to electrical equipment apart from steel wire armoured cable and is compatible with a wide range of applications included within the cable gland is a lock nut washer body seal and sealing nut cap manufactured with nylon 66 materialone of the advantages when using this dome headed cable gland i