The inside handle of my front door has a hole like the picture instead of a screw. At first, I thought I could poke the spring with a thin pin, but that was not the case.

I bought a hex wrench set to find something that fits the hole, but none of the hex wrenches (Allen keys) fit the hole perfectly. The hole is larger than a 2mm Allen key and smaller than a 2.5mm one.

The plate attached to the door cannot be removed because the hole in the plate is narrower than the handle. Could anyone help me with this?

enter image description here

  • 1
    That should indeed be a spring-loaded pin. Remove the handle to free the plate
    – keshlam
    Oct 17, 2023 at 3:03
  • 6
    That still looks like an Allen/hex in the pictures. Try a 3/32" hex. 3/32" = 2.38mm. It might be the one.
    – Ted Hohl
    Oct 17, 2023 at 6:48
  • Despite the ubiquity of metric wrench/bolt sizes, even in the US, there are still things that use SAE (imperial, fractional inch) sizes. I'm with @TedHohl, there that this is probably an SAE size hex screw.
    – FreeMan
    Oct 17, 2023 at 11:06
  • If it's a screw, that makes sense. I'd be very surprised if it was, though.
    – keshlam
    Oct 17, 2023 at 13:19

1 Answer 1


A little internet research revealed that 3/32” is a common size hex for Kwikset door handles. In fact, a search for “Kwikset 3/32 Allen” will reveal hits for this Allen (hex) wrench. The Kwikset Allen wrench is configured with a relatively long shaft (to clear a large door handle) and a short leg that is short enough to allow the installer to freely spin without hitting the face of the door.

From the Kwikset website:

“How do I tighten the screws for my lever that has concealed screws?

This model is a lever and requires a 3/32 Allen wrench to remove the handle in order to pop the rose plate off and expose the screws.”

You don’t need the special Kwikset Allen wrench, almost any 3/32” Allen wrench will do. As long as you can engage it fully and have enough clearance to turn the wrench to remove the hex screw counter-clockwise you will remove the doorknob.

  • 1
    Worth noting also is that the latch bears the logo of Weiser; Weiser is a sibling of Kwikset under Spectrum Brands Holdings, Inc. The two brands have many similarities.
    – Greg Hill
    Oct 17, 2023 at 15:10

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