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Home / Connectors / KYZ-40-6.0 Shaft Selector Switch Speed Control Audio Switch Knob Cap, Potentiometer Cap Outer Diameter 40 Inner Diameter 6

Attributes

Brand -
Category Electronic Components Market / Connectors
Origin -
Material Bakelite Plastic
Outer Diameter 40mm
Inner Diameter 6mm
Color Black
Shape Round Knob
Application Audio Equipment, Speed Control
Mounting Type Push-on Fit
Compatibility 6mm Shaft Potentiometers
Finish Matte Textured
Package Quantity 1 Piece

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 5/5

Solid construction

Very happy with this purchase. It turns smoothly without wobbling. Ideal for audio switches where precision matters.

A

Anonymous

Mar 26, 2026

Rating: 5/5

Perfect fit for my vintage amp

This knob fits perfectly on my 6mm shaft potentiometer. The bakelite material feels sturdy and has a nice retro look that matches my equipment.

A

Anonymous

Mar 14, 2026

Rating: 4/5

Good quality, slightly tight fit

The build quality is excellent. It was a bit tight to push on initially, but once seated, it stays very secure. Great for speed control applications.

A

Anonymous

Mar 12, 2026

Rating: 4/5

Nice aesthetic

Looks great on my project box. The matte finish reduces glare which is a nice touch. Would buy again for future projects.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Durable replacement part

Used this to replace a broken knob on an old mixer. The plastic feels durable and not cheap like some other replacements I've tried.

A

Anonymous

Mar 01, 2026

Rating: 5/5

Exactly what I needed

Ordered this for a custom synthesizer project. The 40mm diameter provides good grip, and the inner diameter is spot on for standard 6mm shafts.

5 FAQ

Q: Will this fit a 1/4 inch shaft?

A: No, this knob is designed specifically for a 6mm inner diameter. A 1/4 inch shaft is approximately 6.35mm and will likely be too large.

Q: What is the height of the knob?

A: The product listing specifies the diameters (40mm outer, 6mm inner), but the specific height can vary slightly by batch. Please contact us if you need exact dimensional drawings.

Q: Is the material heat resistant?

A: Bakelite is generally heat resistant and suitable for standard electronic applications, but it should not be exposed to extreme direct heat sources.

Q: Can I use this for high torque applications?

A: While durable, this is a plastic knob intended for standard selector switches and potentiometers. We do not recommend it for high-torque industrial machinery.

Q: Does it come with a set screw?

A: No, this is a push-on style knob cap and does not utilize a set screw. It relies on friction fit for the 6mm shaft.

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