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Lockey OSK - Oversized Knob for Knob-Handle Locks

The Lockey OSK is a keypad knob that fits over the round flat knob on Lockey 2000 and 2900 Series locks and tightens with a set screw. It makes it much easier to grab and turn the knob, especially for children and elderly people whose hands are not strong. See below for photo showing side-by-side comparison with the regular knob.

Product Dimensions chart for


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Starting at: $14.83   MSRP: $21.19

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Select the Options You Want:

The color(s) above are only the ones which are available for this product.

Lockey Colors
(click to enlarge)


  • PARTS/SERVICES: handy items for replacement, repair, or to just have on hand.


  • The Lockey Oversized Knob is compatible with the Lockey 2200, 2210, 2230, 2500, 2900, 2950, both single and double-sided keypads as well as panic bar locks.
  • It is not compatible with Lockey locks have a built-in key override.
  • It is not compatible with Lockey lever handle locks, Lockey M-Series locks, or Lockey C-Series locks.


  • One size only: 1-3/4" diameter x 1-1/4" deep.


  • The Lockey Oversized Knob may be used on the outside of a single-sided lock, on the inside of a double-sided lock, or in both places if you have two of them.
  • It is secured with a set screw which is tightened with an Allen wrench (included).
  • When installed, a Lockey Oversized Knob makes the replacement doorknob approximately the same size as a Lockey lock with a built-in key override.

Matching Finishes

  • The Lockey Oversized Knob is usually ordered to match the finish of an existing Lockey lock, but you may use any color you wish—they are all interchangeable.

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Google Product Category: 503730 - Hardware > Locks & Keys > Locks & Latches