For a fixture in panels up to 6 mm thick. Fixed by: slotted nut M12 x 0.75 and spring washer. A fixture using special tool MWZ 8 and MWZ 15. Contact parts: nickel-plated. Insulation: PA 6.6 (Polyamide) UL94 - V2. Fixed by nut (slotted nut) M12 x 0.75.