Adapter with metric connection thread according to DIN EN 60423 and Pg internal thread according to DIN 40430, glass fiber reinforced, halogen-free. External thread: M 40 Internal thread: Pg 29 External thread length: 11 mm Internal thread length: 18 mm Wrench size: 42 with connecting thread sealing ring 987M... (please order separately!) : IP68 Operating temperature range: -30° to 100°C Material: Polyamide Color: light gray RAL: 7035 (similar)