Rounded Half Mortise Lock, doors hinged left

Many historical locks are no longer made due to limited demand.
If a specific lock is not shown in our lock collection then we do-not know of a source.

Half Mortise Lock for Doors Hinged on Left & Drawers

• Backset- Distance To Pin: 7/8" this measurement is critical if replacing a lock as keyhole in lock and furniture must line up together.
• Lock Plate: 1-3/4" Wide x 1-7/8" High
• Selvedge: 1-3/4" x 3/8"
• Bolt Projection: 1/4"

Helpful information on selecting and replacing half mortise locks.

Key Size

• Barrel: 3/16" x 1-3/8"
• 2-5/16" Overall Length
• Key-bit Height: 3/8"
• Keyhole-covers not-included as furniture style dictates design
• #0242,#0237, #0253  insert escutcheons fit this lock

Install Considerations

If replacing a lock, we suggest reading: What you need to know about selecting and replacing half mortise locks.

1. When using on doors: select according to side door is hinged on. This lock is for cabinet doors hinged on right.
   
2. When using on drawers: Keyholes are off-center requiring lock to be positioned accordingly.
3. Lock installs into a partial cut out in furniture. In closed position, lock is not seen. 

If replacing a lock: the backset measurement must be determined

• If you have original lock: measure distance between top edge of lock to lock pin in center of keyhole. This measurement is known as the backset.
• If old lock not available, determine backset by measuring: distance from center of keyhole (where lock pin will be) to top edge of drawer or side edge of door.
• The backset measurement of the replacement lock, must match backset measurement in original lock and/or keyhole location measurement in drawer or cabinet door.