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Home / Board Game Accessories: Card Sleeves & Protectors / 2012mm Plastic Knobs Tube Amp Amplifier Audio Potentiometer Switch Caps Guitar Volume Adjustment Round Knobs

Attributes

Brand -
Category Models, Anime, Merchandise, Dolls & Board Games / Board Game Accessories: Card Sleeves & Protectors
Origin -
Material High-quality durable plastic
Diameter 20mm (approx. 0.79 inches)
Height 12mm (approx. 0.47 inches)
Shaft Fit Standard 6mm potentiometer shafts
Color Classic Black with white indicator line
Shape Round dome design
Compatibility Guitar amps, audio mixers, and effect pedals
Package Quantity Set of 4 knobs
Installation Push-on fit, no tools required
Finish Matte texture for improved grip

6 reviews

A

Anonymous

Mar 29, 2026

Rating: 4/5

Good quality, slight color difference

The build quality is excellent and they sit tight on the pots. The black is slightly more matte than my original knobs, but it still looks great.

A

Anonymous

Mar 27, 2026

Rating: 5/5

Solid construction

Very happy with these. They don't slip off easily and the plastic feels thick enough to last years. Highly recommend for any guitarist.

A

Anonymous

Mar 24, 2026

Rating: 5/5

Exactly what I needed

I needed standard 20mm knobs for a DIY pedal project. These worked flawlessly. The indicator line is clear and easy to see on stage.

A

Anonymous

Mar 24, 2026

Rating: 5/5

Simple and effective

Bought these to replace some cracked knobs on my practice amp. They look professional and were incredibly easy to install. Just push them on!

A

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect replacement for my old amp

These knobs fit perfectly on my vintage tube amplifier. The size is exactly as described and they feel very sturdy. Great value for the price.

A

Anonymous

Mar 08, 2026

Rating: 4/5

Great fit for standard pots

Fit my Fender amp pots without any issues. The 12mm height gives a nice profile. Took off one star only because shipping took a bit long.

5 FAQ

Q: Can these handle high heat from tube amps?

A: Yes, the plastic material used is heat-resistant and safe for normal operating temperatures of tube amplifiers and audio gear.

Q: Do these come with set screws?

A: No, these are push-on style knobs and do not require set screws. They rely on friction to stay in place on the pot shaft.

Q: Are these sold individually or in a pack?

A: This listing is for a set of 4 knobs. If you need more, you can purchase multiple sets.

Q: Will these fit a 1/4 inch shaft potentiometer?

A: These knobs are designed for standard 6mm (approx. 1/4 inch) shafts commonly found on guitar amplifiers and audio equipment. They should fit securely.

Q: What is the exact diameter measurement?

A: The diameter is 20mm, which is a standard size for most guitar volume and tone controls.

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