Skip to main content
Home / Electronic Components Market / Aluminum Knob 30x10 Unmarked for Amplifier Audio Volume, Semi-Shaft 6mm Splined Shaft Potentiometer Control Knob Cap

Attributes

Brand -
Category Root / Electronic Components Market
Origin -
Material Aluminum Alloy
Dimensions 30mm Diameter x 10mm Height
Shaft Type 6mm Splined (Semi-Shaft)
Finish Matte Black Anodized
Markings Unmarked (No Indicator Line)
Compatibility Standard Audio Potentiometers
Weight 12 grams
Package Contents 1x Control Knob, 1x Set Screw
Application Amplifier Volume and Tone Control
Mounting Method Set Screw Securement

6 reviews

A

Anonymous

Mar 23, 2026

Rating: 4/5

Good for standard pots

Works well with standard Bourns and Alpha pots. Just ensure your shaft is indeed 6mm splined before ordering. The lack of markings is perfect for my minimalist setup.

A

Anonymous

Mar 12, 2026

Rating: 4/5

Great quality, slightly tight fit

Excellent build quality and looks very professional. The set screw held firm, though I had to apply a bit of force to get it onto the 6mm shaft initially. Once on, it is very secure.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Solid replacement knob

I needed unmarked knobs for a custom pedal board to keep the aesthetic clean. These are exactly what I was looking for. No wobble and the grip is comfortable.

A

Anonymous

Mar 06, 2026

Rating: 5/5

Premium feel at a good price

Much better than the plastic knobs that came with my kit. The weight gives a nice tactile feedback when turning the volume. Will buy more for future projects.

A

Anonymous

Mar 02, 2026

Rating: 5/5

Exactly as described

Fast shipping and the product matches the description perfectly. The anodizing seems durable and scratch-resistant. A solid choice for any audio equipment repair.

A

Anonymous

Mar 01, 2026

Rating: 5/5

Perfect fit for my vintage amp restoration

The splined shaft fit perfectly on my old potentiometers. The aluminum feels premium and the matte finish matches the chassis beautifully. Highly recommended for DIY audio projects.

5 FAQ

Q: Are these sold in packs or individually?

A: The listing price is for a single unit. If you need multiple knobs for a stereo amplifier or multi-channel mixer, please adjust the quantity in your cart accordingly.

Q: Can I use this for high-power voltage applications?

A: This is a control knob for user interface purposes only. It does not carry electrical current itself; the potentiometer underneath handles the electrical load. Ensure the potentiometer is rated for your specific application.

Q: What is the inner diameter of the hole?

A: The inner diameter is designed to fit a 6mm shaft tightly. The splines inside the knob match standard 6mm splined shaft profiles.

Q: Is the set screw included in the package?

A: Yes, each knob comes with one small set screw required for mounting it onto the potentiometer shaft.

Q: Does this knob fit a smooth round shaft?

A: No, this knob is specifically designed for 6mm splined (D-shaft or multi-spline) potentiometers. It will not securely fit a smooth round shaft.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Outdoor Waterproof Backpack Camouflage Dry Bag with Wet/Dry Separation for Swimming, Rafting, and Trekking

Outdoor Waterproof Backpack Camouflage Dry Bag with Wet/Dry Separation for Swimming, Rafting, and Trekking

$8.42

[Save $50 on Order] Bundle: 5 Notebooks + 2 Pens + 20 Refills + 2 Grip Correctors

[Save $50 on Order] Bundle: 5 Notebooks + 2 Pens + 20 Refills + 2 Grip Correctors

$39.90

Sketching Tool Set for Art Students - Includes Blending Stumps, Tortillons, Paper Stumps, Sponge Balls, Cotton Swabs, Highlight Pens, Gray Tone Tools, Insert Knives, Smudging Knives, Scrapers, and Blending Cotton

Sketching Tool Set for Art Students - Includes Blending Stumps, Tortillons, Paper Stumps, Sponge Balls, Cotton Swabs, Highlight Pens, Gray Tone Tools, Insert Knives, Smudging Knives, Scrapers, and Blending Cotton

$7.65

Suede Rope Korean Velvet Rope DIY Aromatherapy Candle Plaster Tag Hanging Cord Packaging Gift Box Ribbon Decorative Leather Rope

Suede Rope Korean Velvet Rope DIY Aromatherapy Candle Plaster Tag Hanging Cord Packaging Gift Box Ribbon Decorative Leather Rope

$0.85

[Damai Holds Microneedle Hair Transplant Patent] Hair Collagen | Improves Hair Loss, Nourishes Dermis and Follicles

[Damai Holds Microneedle Hair Transplant Patent] Hair Collagen | Improves Hair Loss, Nourishes Dermis and Follicles

$1,980.00

Selected Factory Low-Temperature 3D Printing Pen for Kids, Children's 3D Printing Pen Set, 3D Drawing Pen

Selected Factory Low-Temperature 3D Printing Pen for Kids, Children's 3D Printing Pen Set, 3D Drawing Pen

$100.02

Milk Pasteurization Line - Small-Scale Yogurt Production Machine for Liquid Yogurt and Pasteurized Milk

Milk Pasteurization Line - Small-Scale Yogurt Production Machine for Liquid Yogurt and Pasteurized Milk

$8,148.00

Commercial Small Heating Warmer Cabinet, Glass Constant-Temperature Countertop Display Case for Egg Tarts, Burgers, and Fried Chicken

Commercial Small Heating Warmer Cabinet, Glass Constant-Temperature Countertop Display Case for Egg Tarts, Burgers, and Fried Chicken

$884.00

Custom Seal Stamp Engraving Personal Name Phone Number Private Chop

Custom Seal Stamp Engraving Personal Name Phone Number Private Chop

$5.89

Commercial Food Warmer Cabinet for Milk, Soy Milk, Burgers, Egg Tarts, Fried Chicken, Pies, Youtiao, and Bread Display

Commercial Food Warmer Cabinet for Milk, Soy Milk, Burgers, Egg Tarts, Fried Chicken, Pies, Youtiao, and Bread Display

$1,355.00

PJ0040 Rose Embossed Cross Silicone Mold - For Candles, Aromatherapy, Soap, Plaster, and DIY Crafts

PJ0040 Rose Embossed Cross Silicone Mold - For Candles, Aromatherapy, Soap, Plaster, and DIY Crafts

$11.20

Yuwell Oxygen Concentrator Control Board Motherboard 8F-3AW/8F-5AW/9F-5BW

Yuwell Oxygen Concentrator Control Board Motherboard 8F-3AW/8F-5AW/9F-5BW

$120.00

Leyingfang Floating Pen for Kids and Students - Water-Based Non-Toxic Erasable Whiteboard Pen for Drawing in Water, Large Capacity Suspension Pen

Leyingfang Floating Pen for Kids and Students - Water-Based Non-Toxic Erasable Whiteboard Pen for Drawing in Water, Large Capacity Suspension Pen

$18.00

Car Wheel Lug Nut Covers - Colorful Silicone Dust-Proof and Rust-Proof Caps for Tire Bolt Protection and Exterior Styling

Car Wheel Lug Nut Covers - Colorful Silicone Dust-Proof and Rust-Proof Caps for Tire Bolt Protection and Exterior Styling

$8.80

Automatic Stainless Steel Vegetable Slicer for Ginger, Potatoes, Carrots, Onions, and Cabbage - Commercial Dicing Machine

Automatic Stainless Steel Vegetable Slicer for Ginger, Potatoes, Carrots, Onions, and Cabbage - Commercial Dicing Machine

$3,951.36

[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement (500 Units)

[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement (500 Units)

$7,000.00

Little Leather Paper Strip Music Box (30-Note) Sheet Music - Contact Before Ordering; Specify Song Email for Digital Score Delivery

Little Leather Paper Strip Music Box (30-Note) Sheet Music - Contact Before Ordering; Specify Song Email for Digital Score Delivery

$1.00

Kitchen Sink Strainer Basket Push-Type Food Residue Separator Filter Hanging Storage Rack

Kitchen Sink Strainer Basket Push-Type Food Residue Separator Filter Hanging Storage Rack

$3.80

Heavy-Duty Heat-Treated CV Joint Puller Tool - Axle Ball Cage Removal and Installation Device for Automotive Repair

Heavy-Duty Heat-Treated CV Joint Puller Tool - Axle Ball Cage Removal and Installation Device for Automotive Repair

$66.00

Mobile Integrated Waste Transfer Station - 17 Cubic Meters Movable Compression Container

Mobile Integrated Waste Transfer Station - 17 Cubic Meters Movable Compression Container

$159,443.00

Antique Glaze White Ceramic Brush Washer Large Brush Washer Water Pot Ink Stone Washing Calligraphy Painting Brush Washing Basin Four Treasures of the Study

Antique Glaze White Ceramic Brush Washer Large Brush Washer Water Pot Ink Stone Washing Calligraphy Painting Brush Washing Basin Four Treasures of the Study

$16.80

Authentic Chinese Philosophy Classics: Di Tian Sui, Qiong Tong Bao Jian, San Ming Tong Hui - Annotated & Illustrated Edition

Authentic Chinese Philosophy Classics: Di Tian Sui, Qiong Tong Bao Jian, San Ming Tong Hui - Annotated & Illustrated Edition

$29.90

Household Disposable Kitchen Sink Garbage Filter Mesh Drain Pool Dishwashing Basin Strainer Vegetable Bowl Leftover Sink

Household Disposable Kitchen Sink Garbage Filter Mesh Drain Pool Dishwashing Basin Strainer Vegetable Bowl Leftover Sink

$3.51

Continental Run-Flat Tires: 225/235/245/255/265 45/50/55 R17/R18/R19/R20/R21/R22

Continental Run-Flat Tires: 225/235/245/255/265 45/50/55 R17/R18/R19/R20/R21/R22

$357.00

Foldable Steel Tire Stone Removal Hook - Multi-Tool for Tire Repair, Stone Picking, and Emergency Window Breaking with Storage Bag

Foldable Steel Tire Stone Removal Hook - Multi-Tool for Tire Repair, Stone Picking, and Emergency Window Breaking with Storage Bag

$11.70

Integrated Catalytic Combustion Unit RCO Furnace - Exhaust Gas Treatment System with Activated Carbon Adsorption-Desorption and Catalytic Combustion

Integrated Catalytic Combustion Unit RCO Furnace - Exhaust Gas Treatment System with Activated Carbon Adsorption-Desorption and Catalytic Combustion

$231,249.00

Universal Waterproof and Sunproof Cover for E-Bike Charger with Outdoor Storage Box

Universal Waterproof and Sunproof Cover for E-Bike Charger with Outdoor Storage Box

$11.85

Baohong Paper Brick Watercolor Paper Pad, Medium/Coarse Texture, Square/Round Shapes for Painting, Sketching, and Cotton Pulp Practice

Baohong Paper Brick Watercolor Paper Pad, Medium/Coarse Texture, Square/Round Shapes for Painting, Sketching, and Cotton Pulp Practice

$28.00

Commercial Food Warmer Cabinet for Pies, Youtiao, Burgers, Egg Tarts, and Fried Chicken, Heating and Temperature-Controlled Display Case

Commercial Food Warmer Cabinet for Pies, Youtiao, Burgers, Egg Tarts, and Fried Chicken, Heating and Temperature-Controlled Display Case

$977.00

Masking Tape Spray Paint Shielding Paper for Art Students and Sketching - Non-bleeding, Residue-free, Hand-tearable, Shoe-safe

Masking Tape Spray Paint Shielding Paper for Art Students and Sketching - Non-bleeding, Residue-free, Hand-tearable, Shoe-safe

$1.00