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Item # 4436

Full Mortise Lock, 1/2 inch

Scroll down for additional Product Info and Size

Full Mortise Locks are a low profile design. Once installed only brass selvedge and keyhole are visible. The result is a smooth wood surface, surrounding the lock body. 

When installing: Full Mortise Locks are fitted into a pocket, carved in drawer top or door side. Strikes not necessary and rarely used. If prefered generic strikes are available.

Full Mortise Locks have three keyhole positions. This unique mechanism can be used on either left doors, right doors or drawers. Keyholes are offset requiring care when positioning lock in furniture. 

German engineering and smooth action combine producing this well-made, dependable lock. Made in Germany.

Backset: distance to pin is 1/2". Black-Install-tab provides additional help. 

more Full Mortise Locks

Full Mortise Door and Drawer Locks, 3/4" backset

Full Mortise Door and Drawer Locks, 1" backset

Product Info
  • Sold each
  • Supplied with two Brass-plated Keys
  • Material: Brass selvedge with steel box
  • Wood screws for mounting included.
  • Keyhole-covers not-included as style of keyhole-cover is dictated by furniture period.

  • Size When replacing locks: the backset is most crucial as it must match cutout in furniture for lock to line up correctly with existing keyhole.
    Lock Dimensions
  • Overall Lock Body: 2-1/16" width x 1-1/4" height
  • Backset-Distance To Pin: 9/16", 15mm (Distance between: selvedge-edge of lock to center-of-pin in keyhole.)
  • Selvedge: 3-3/8" x 1/2" - 12 mm x 85 mm
  • Bolt Projection: 5/16"
  • Lock Thickness: 5/16"
  • Key Measurements:
  • Use Key-measurements to determine if key slips keyhole
  • Key Length 2-5/8", Barrel Diameter: 1/4", Barrel-length: 1-5/8", Key-bit Height: 9/16"
  • Full Mortise Lock Information


    Full Mortise Locks are a popular style, Lock-mechanism fits into a pocket in wood, This style is often desired for it's minimalist appearance as only selvedge is visible on door/drawer edge. 

    USE ON DRAWERS, DOORS AND DESKS.

    Drawer Locks were commonly used on drawers. Lock-bolt shoots up into case above drawer, a strike is rarely used.

    Door Locks are handed meaning right-hand or left-hand. Please note: some full mortise locks are not available in both left and right options. When looking for door locks be sure lock is handed according to your needs.

    doors hinged on right - bolt shoots to the left.

    doors hinged on left - bolt shoots to the right.

    Desk Locks were often used on roll top desks. These applications require a trap-door strike with the lock. 

    MEASURING HALF MORTISE LOCKS:

    Full Mortise Lock Diagram

    Before looking for a replacement it will be necessary to measure your lock.

    Please view diagram below to determine how to measure your lock.

    The backset measurement, is the most important measurement, must match precisely.

    Once the backset measurement is determined you can look at your various options.

    If potential substitutes have different lock-body or lock-plate measurements cabinet work may be necessary to fit the lock.

    FULL MORTISE INSTALLATION

    Determine desired location of lock

    Adjust position to allow for location of keyhole as it is often off center in lock

    Lock should be positioned in middle of wood thickness, providing a wood edge around selvedge

    Mark location of lock-selvedge on door or drawer edge

    Hold lock-selvedge, at desired location, on wood thickness and trace outline

    Inspect outline for accuracy , straighten lines where necessary

    Mortise Selvedge

    Lock-body

    Trace lock-body outline into selvedge-mortise at correct position

    Cut lock-body-mortise

    Mortise can be slightly off as selvedge will conceal lock-body once installed.

    Check lock with mortise, lock should sit in mortise with selvedge flush with wood surface

    Strikes are rarely use with reproduction full mortise locks. Traditionally a simple mortise was cut in the wood to accept the lock bolt.

    Keyhole Placement

    Measure distance from top of lock-plate to center of key pin

    Measure distance from side of lock-plate to center of key pin

    With these two measurements locate keyhole on furniture front, make sure key pin is aligned with keyhole location

    Drill small pilot hole at key pin location, hold lock in position and check to make sure hole lines up with key pin

    Drill hole larger to accommodate key barrel

    Mount Lock

    Mount lock in a mortised- pocket in wood thickness/edge

    Selvedge edge should be level with top of drawer or edge of door

    Attach with wood screws

    For a finished appearance: mount an  escutcheon/keyhole plate, on furniture front.

    If Using Brass Wood Screws

    Care is required when installing brass screws. While these screws are the best match for most antique hardware however they are not as strong as steel screws. The screw is easily damaged if the hole is not properly prepared.

    The best practice is to first drill a pilot hole. Use a drill bit slightly smaller than the overall width of the screw, including threads, to drill the hole. Then use a steel screw, the same size as brass screw, to “cut threads” in pilot hole, by screwing steel screw into and then out of hole.

    When will my order ship?


    Orders normally leave our warehouse in 1 – 2 business days

    Ground delivery usually takes 3-5 business days depending upon your location. We ship out of Maryland

    Ground Shipping is Free on Orders over $99 to the 48 contiguous states, USA

    Low $6.95 flat-rate shipping for orders less than $99 to the 48 contiguous states, USA

    Air and International shipping is calculated according to carrier rates, box size and weight. Please call or email for assistance.

    Returns are accepted within 60 days of receipt for a full merchandise refund - your original payment method will be credited for the merchandise amount.


    If you need assistance, we are happy to help! 800-241-9741

    Monday – Friday 9:00 am – 5:00 pm Eastern Time

    Email: support@paxtonhardware.com

    Customer Reviews

    Based on 3 reviews
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    L
    L.B.
    Nice quality lock

    Precisely made and works smoothly

    H
    H.F.
    desk lock

    The lock was as described and I was prepared and made the necessary modification to use it in an old secretary's desk. It would have been nice if I could have purchased a lock with the same dimensions as the old one, however this is a very satisfactory solution.

    P
    P.M.
    Not Bad

    I needed various parts for restoring a 1920's era secretary, hinges, locks, lid stays etc., that has been in the family since it was new and that was going to be passed on to the next generation. I Googled and found Paxton. I bought a variety of mortised locks, some hinges and escutcheons and was very pleased with the product, the professional nature of the service and will ultimately be purchasing more form Paxton.

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