Adapter, with metric connection thread according to DIN EN 60423 and Pg internal thread according to DIN 40430, with knurled collar. External thread: M 16 Internal thread: Pg 07 External thread length: 5 mm Internal thread length: 7.5 mm Wrench size: 18 mm with connecting thread sealing ring 987M... (please order separately!) : IP68 Material: brass, nickel-plated