Base locking part series 550, galvanized steel, yellow chromated, for welding

Assembly:
A hole of Ø 9.5 mm is drilled through the cover plate, the locking bolt is pushed through and secured from the back with the retaining washer. To attach the lower part, a center hole of Ø 12 mm and two fastening holes are drilled according to the hole pattern of the respective base. It can be fastened with screws, rivets or spot welding.