P2000 Active single point lock (SPL) 60/92 Gearbox. The Single Point Lock (SPL) has a deadbolt and spring latch only – It is NOT a Multipoint lock (MPL). This mortise Lock case will replace the active gearbox on Amesbury MPL with the same size and configuration. Amesbury has 3 different locks – compare information. 1 Inch (25.4mm). Lock Depth: 2-1/2 inches (64mm). To Change Handing / Latch Reversal. Extend the Deadbolt and pull the spring latch out. Rotate to correct position. Check the function of the lock before closing the door. The T-20 torx Star bit screws require 12-13 pounds of torque.