【Replace Old Lock Body】: If your storm door latch assembly is broken, latches or deadbolt won't slide out or retract completely, simply get a new Eockatoo 2 point bolt mortise lock body instead of replacing the strom door or handle. This lock body is only for Pella storm doors and is not universal. This is only an internal mechanism, not including the lock cylinder and handle 【Security】: 2-bolt mortise lock design with 2-point locking mechanism. The compatible lock cylinder must be made by Pella. Their lock cylinder knob/key rotates 270 degrees before the cam starts to rotate 【Size Guide】: Bolts are 2-1/2" apart; Overall faceplate length: 8-1/2"; Faceplate width: 13/16"; Installation screw holes: 7-1/4"; Center of handle to center of cylinder: 2-1/2" 【Easy Installation】: Insert the lock by aligning the triangular plastic positioner on the lock with the half-moon notch on the side of the mortise hole. There are 4 spring tabs that hold the mortise lock in the storm door, even with the panel screws not yet in place. Use a standard screwdriver and the spring tabs will retract when removing lock body. Put a piece of cardboard between screwdriver and door to prevent marring or chipping paint [Package Includes]: 2 point bolt mortise lock body black x 1, flat head screw x 2, hole plug x 1, triangular positioner x 1, allen wrench x 1 If your storm door latch assembly is broken, latches or deadbolt won't slide out or retract completely, simply get a new Eockatoo 2 point bolt mortise lock body instead of replacing the strom door or handle. This lock body is only for Pella storm doors and is not universal. This is only an internal mechanism, not including the lock cylinder and handle, 2-bolt mortise lock design with 2-point locking mechanism. The compatible lock cylinder must be made by Pella. Their lock cylinder knob/key rotates 270 degrees before the cam starts to rotate