Alembic Guitars Club

Alembic products => Owning an Alembic => Troubleshooting => Topic started by: Whisper0420 on August 16, 2025, 07:31:44 PM

Title: Shaft depth for the Alembic Hat knob 182-007
Post by: Whisper0420 on August 16, 2025, 07:31:44 PM

Hi All,

Hoping someone can help here. I’m looking for the shaft depth for the Alembic Hat knob 182-007.

I have the diameter from the alembic website, but I cannot locate the shaft depth anywhere online.

Thanks.

Title: Re: Shaft depth for the Alembic Hat knob 182-007
Post by: jon_jackson on August 17, 2025, 09:20:42 AM

I pulled an original hat knob (1/4" shaft) and measured it. The metal cylinder inside the resin knob which receives the shaft is just over 1/2 inch in depth (.516" on mine). However, the bottom of the hat knob is concave, with the metal cylinder inset about .120" from the bottom rim of the knob. Depending upon what you are using the depth number for, the maximum depth of shaft allowance would be between 1/2" - 5/8", approximately.

Incidentally, the set screw for the shaft is located just above the bottom flare of the knob. Hope this helps.

Title: Re: Shaft depth for the Alembic Hat knob 182-007
Post by: Whisper0420 on August 17, 2025, 01:32:12 PM

Thanks a lot!