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Replacing Keys on Furniture Locks

Replacing keys in old locks

Fitting Furniture Keys

Replacing keys for an existing lock is difficult

  • Knowing the manufacturer and model number of the lock unfortunately does not help in locating a replacement key.  The majority of historic lock companies are no longer in business.
  • Replacing keys on existing locks is very difficult.

    • The lock mechanisms are often quite complex requiring a specific cut pattern in the key bit.
    • These cut-patterns are rarely interchangeable. 
    • A locksmith is often required to cut the exact pattern in the key for it to turn the lock mechanism.

Choosing a key blank:

Key Blanks

Furniture Key Measurements

  • Determine lock-pin diameter This measurement is critical as key-barrel must slide over lock pin.
  • The key-bit must be sized correctly to move the lock-bolt .

Key-bit Patterns vary according to individual locks. 

  • Some locks are easily turned with a simple un-notched blade
  • Other locks require a key bit cut pattern to have one notch to lock or unlock
  • Many locks require a key bit cut pattern to have 2 notches: one notch locks the lock the other notch unlocks the lock
  • Locks made with spring-loaded levers require a  very specific key bit cut pattern. The cut pattern is often complex. This type of key is typically very difficult to reproduce.
  • We do-not know of or have a guide for how to determine the key bit pattern. A locksmith, who is familiar with older locks, is our best recommendation. 

Antique and vintage keyhole Covers

Selecting Keyhole Covers - Escutcheons

 Keyhole Covers and Escutcheons

  • Measure keyhole height in furniture
  • Measure height of key-bit
  • Compare above determined measurements, to interior keyhole measurements, of the desired keyhole cover

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