Aluminum Potentiometer Knob 20mm 30mm – Black & Silver

Aluminum Potentiometer Knob – Precision CNC Machined for Audio & Electronics

Upgrade your audio gear, amplifiers, or DIY electronics with this solid, CNC-machined aluminum potentiometer knob. Available in two sizes (20mm and 30mm diameter) and two sleek finishes — Black Anodized and Silver Anodized — these knobs deliver a premium, professional look and a firm, satisfying grip for precise volume, tone, or frequency adjustment.

Made in Mainland China.

Key Features

• Solid Full Aluminum Construction: Durable and lightweight, resistant to wear and corrosion for long-lasting performance.
• CNC Precision Machined: Tight tolerances ensure a secure, wobble-free fit on standard 6mm potentiometer shafts.
• Anodized Surface Finish: Scratch-resistant coating that preserves the sleek look over years of use.
• Machined Pointer Slot Line: Easy-to-read position indicator for accurate setting at a glance.
• M3 Inner Hex Set Screw: Included for quick, tool-accessible mounting and secure shaft grip.
• Two Sizes Available: 20mm for compact builds; 30mm for larger panels and easier handling.
• Two Color Options: Classic Black or polished Silver to complement any panel or enclosure.

Specifications

Package Includes

• 1 × Aluminum Potentiometer Control Knob

Perfect For

• Guitar amplifiers, HiFi audio equipment, and mixing consoles
• DIY synthesizers and custom electronics enclosures
• Ham radio and RF equipment panels
• Lab instruments, test equipment, and industrial control panels

Note: Photos may not reflect actual size — please refer to the specifications above for dimensions. Slight color variations may occur due to monitor settings. Please allow minor tolerances due to manual measurement.

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Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: What shaft size does this aluminum potentiometer knob fit?

A: This knob is designed to fit a standard 6mm diameter shaft. It secures in place using the included M3 inner hex set screw, ensuring a firm, slip-free connection to your potentiometer.

Q: What is the difference between the 20mm and 30mm versions?

A: The 20mm knob is ideal for compact equipment panels and tighter layouts, while the 30mm knob provides a larger grip surface — great for larger control panels or applications where ease of adjustment is important. Both share the same 6mm shaft hole and M3 set screw.

Q: Are these knobs suitable for audio equipment like amplifiers or mixers?

A: Absolutely. These CNC-machined aluminum potentiometer knobs are a popular choice for guitar amplifiers, HiFi systems, mixing consoles, and DIY audio builds. The anodized finish resists wear, and the machined pointer slot line makes it easy to identify settings at a glance.

Q: Do both Black and Silver versions have the same specifications?

A: Yes. Both the Black Anodized and Silver Anodized versions share identical dimensions, shaft hole size, and set screw specifications. The only difference is the surface color and anodizing finish.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.