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Northwest Guitars

Dual Concentric Metal Control Knob NC004

Dual Concentric Metal Control Knob NC004


Regular price £4.99
Regular price Sale price £4.99
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27 in stock


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Concentric volume/tone control knobs are commonly found on guitars like the Fender Jazz Bass and other models. These knobs, when used with a concentric potentiometer, serve as both volume and tone controls in a single unit.

When paired with another tone control, this configuration allows for the use of the concentric knob as a "master" tone control, affecting the overall tone of the instrument.

To install these knobs, they can be easily pushed onto the pots and then tightened using a 1.5mm allen wrench. They are designed to fit Alpha and CTS pots with a 6mm split shaft, which are commonly used in guitars.

These knobs feature solid metal construction, ensuring durability and longevity. They offer a dual control function, allowing for independent adjustment of volume and tone. Additionally, their simple fitting makes them suitable replacements for Fender or Squier Jazz Basses, as well as other guitars equipped with concentric pots.

See diagram for dimensions



Height: 23mm

Diameter: 25mm

Internal Hole Diameter: 8mm /6mm


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Customer Reviews

Based on 4 reviews
William Maries
Good stuff

Quality products. Arrived in time. Recommended. Thanks


Très belle qualité, très satisfait! Mention honorable pour un service d’exception! J’avais omis dans commander un supplémentaire pour en avoir deux au totale, le vendeur m’a généreusement offert le deuxième gratuitement pour m’eviter des frais d’expédition supplémentaire! Un geste grandement apprécier! Vous allez me revoir, merci encore!!

Justin G
Incompatible w CTS EP 4586 Concentric Pot

I bought this to fit on the concentric 500K CTS pots sold here, but they do not fit. If you buy the concentric 500K pots, you need the Allparts item: MK 0137 010 sold elsewhere.

Conall Ginley Ibbotson

Was very happy with my order. Item exactly as described, arrived promptly, and worked perfectly for my guitar.
So glad it wasn’t too expensive!