Genuine Andersen Patio Door Auxiliary Security Lock in bright brass, part # 2565710. New old stock, sealed on the original Andersen blister card (card © 1988, label dated 2006). The card has shelf wear from storage.

✅ Genuine Andersen part # 2565710, bright brass finish
✅ Includes the lock with black knob, 2 brass screws and 2 black plastic grommets
✅ Dead-lock for extra security when the door is fully closed and the security lock and patio door lock are locked
✅ Can also hold the door in a ventilating position
✅ The card says it fits all Andersen Patio Doors; Andersen lists it for 200 Series Perma-Shield, 200 Series Narroline, 400 Series Frenchwood, A-Series and E-Series gliding patio doors
✅ New, sealed on the card; card shows shelf wear
Other hardware available in my eBay store.