Series 550, Pan head with slot, Zinc plated, colourless chromated, 0,50 − 1,10

Quarter turn fastener for electrical, electronic devices, apparatus and vehicle construction for the attachment of panels, inserts and inspection hatches. The quick release fastener is supplied with a slotted, Phillips, plastic knurled or steel knurled head aplus a star grip.

Function:
With a 1/4 turn, the inserted bolt with cross pin is axially tensioned against the spring by the curve in the lower part. The cross pin engages at the end of the curve.

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.