Antique Full Mortise Furniture Locks, backset 3/4 inch

Full Mortise Lock

Overall Lock Body: 2-1/16" width x 1-7/16" height Backset: 3/4", 20 mm  Selvedge: 3-3/8" x 1/2" - 12 mm x 85 mm Bolt Projection: 5/16" Lock Thickness: 5/16" Key Measurements: Length 2-5/8", Barrel Diameter: 1/4", Barrel-length: 1-5/8", Key-bit Height: 9/16"

Many lock sizes were made years ago. Few sizes are now made. Replacing old locks often requires cabinet work. More Full Mortise Drop-in Locks 9/16" backset 1" backset Keyhole Covers Not-included as furniture style dictates design Keyhole-covers Inserts: #0242, #0237, #0253 For help measuring and selecting full mortise locks, we recommend reading: How to select, measure and install full mortise cabinet locks.

Although the low-profile look is ideal on modern furniture, this Full Mortise Lock is a historic design that has been used on antiques for generations. To install, a mortise is cut in wood for lock to fit into. Upon installation, only top of lock and keyhole are visible. 

Experience the reliability of German engineering with our Full Mortise Lock. It features a 3 lever locking mechanism for smooth action, dependable performance, and a high level of security. Constructed of durable steel with a brass selvedge, this high-quality product provides protection for your belongings.

Install Considerations

1. Strikes were rarely used with full mortise locks. Typically wood is notched to accept bolt. However if preferred a generic #4521 strike is available separately.
2. When using on doors: use on right and left hand doors. Place lock to account for keyhole location.
3. When using on drawers: Keyholes are off-center requiring lock to be positioned accordingly.
4. Lock fits into cut out pocket in top-edge of drawer or side-edge off door.  Once installed only brass selvedge and keyhole are exposed. 

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 would 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.