Item # 4445

Steel Half Mortise Box Lock, 1 inch Backset

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$8.67
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$8.67
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Half Mortise Box Locks

Lock Size

  • Backset- Distance To Pin: 1"
  • Overall: 2-5/8" x 1-9/16"
  • Selvedge: 1/2" x 2-5/8"
  • Key Size: Barrel: 3/16" D x 1-1/2", 2-3/16" Overall Length, Key-bit Height: 1/2"

Keyhole Covers

Finding an exact match for an old lock is not always possible, as only a limited amount of sizes are now made.


Economical Box Locks, with half mortise design, are used on chests and boxes with lift lids. Lock is mortised into interior of box front and strike attaches underneath lid. When closed, strike drops down into lock.

This is a very reasonably priced lock, as such locking mechanism is average, not as smooth as European made locks, yet is serviceable. Made in Asia

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.

For help measuring and selecting antique furniture locks, we recommend reading: What you need to know about selecting and replacing half mortise locks.

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