***STOP!!! read all info AND watch video below!!!!***
Part Number 555 is DISCONTIUDED. No Longer Available. The retro Fit Replacement option you will be shipped is part number 558 - please watch video below as you will need to mortise out wood from your door panel to make 558 work.
Double-hook Mortise Lock (Truth Hardware) with pocket face plate
AmesburyTruth Hardware 2 Point Recessed Mortise Lock
This fits Hurd / Sierra Pacific Energy Saver Sliding Patio Door Old Style and many other door brands
Used on part number 501 handle set for sliding patio doors
Known Part Numbers: 097182, 097180, 4-5033, 4-5034