Potentiometer Knobs

A potentiometer knob is an accessory that is used as a control knob for a potentiometer.

How do they work?
Many potentiometers knobs are simply push on and can easily be fitted to the potentiometer shaft. Others use a fixing such as a nut, grub screw or blind set screw to fix them in place. The knob can be used to turn the potentiometer, like a volume control knob on a stereo.

What different types are there?
A huge variety of potentiometer knobs are available to suit virtually any application. When choosing the right knob for your potentiometer, you must always check the shaft diameter of the potentiometer. This helps to narrow your options down. Most knobs are cylindrical, but rectangular shaped knobs are available for slider potentiometers. Potentiometer knobs are available in different colours.
Some potentiometer knobs feature a small skirt at the bottom, which can have numbers around it. Others feature a pointer or coloured indicator, which can be helpful for seeing how far a potentiometer has been turned.
Some potentiometer knobs are also multi-turn. They may feature a locking mechanism and a turn counter which shows the number of rotations of the potentiometer knob.
Material
The material that the knob is manufactured from can help you to determine whether it is suitable for your application. Potentiometers knobs are commonly manufactured from plastic (often with a brass insert) or aluminium, and some have soft touch rubber finishes.

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Description Price Shaft Size Knob Diameter Shaft Type Knob Height Body Colour Indicator Colour Depth For Use With Knob Type Material
RS Stock No. 499-983
BrandRS PRO
$2.23
Each
units
4mm 18mm - 12mm Silver - - - Grub Screw Aluminium
RS Stock No. 467-5945
BrandRS PRO
$0.728
Each (In a Pack of 10)
units
6mm 13.3mm Circular 16.5mm Black Green - - Push-On Plastic
RS Stock No. 581-919
BrandRS PRO
$7.166
Each (In a Pack of 5)
units
6.35mm 29.5mm - 20.3mm Black - - - - Plastic
RS Stock No. 777-7369
BrandRS PRO
$0.912
Each (In a Pack of 5)
units
6mm 16.8mm D Shaped 14.5mm Black Grey - - Push-On -
RS Stock No. 467-6077
BrandRS PRO
$0.776
Each (In a Pack of 5)
units
4mm 11mm - 12mm Black White 11.0mm - Slide Plastic
RS Stock No. 467-5923
BrandRS PRO
$0.712
Each (In a Pack of 10)
units
6mm 13.3mm Circular 16.5mm Black Yellow - - Push-On Plastic
RS Stock No. 468-0644
BrandRS PRO
$1.392
Each (In a Pack of 10)
units
11.1mm 29mm - 6mm Clear - - Collet Knob - Plastic
RS Stock No. 259-6806
BrandRS PRO
$1.794
Each (In a Pack of 5)
units
3.175mm 11.6mm - 10mm Black, Red White - - Grub Screw Plastic
RS Stock No. 259-7023
BrandRS PRO
$2.514
Each (In a Pack of 5)
units
6mm 28mm - 17mm Black, Red White - - Grub Screw Plastic
RS Stock No. 581-868
BrandRS PRO
$5.198
Each (In a Pack of 5)
units
6.35mm 14mm - 11mm Black - - - Low profile Plastic
RS Stock No. 467-5872
BrandRS PRO
$0.697
Each (In a Pack of 10)
units
6mm 13mm Circular 17mm Grey Yellow - - Push-On Rubber
RS Stock No. 467-2508
BrandRS PRO
$10.85
Each
units
6mm 22mm - 26.7mm Black White - - Grub Screw Aluminium
RS Stock No. 467-2536
BrandRS PRO
$18.36
Each
units
6mm 31.8mm - 26.7mm Black White - - Grub Screw Aluminium
RS Stock No. 467-6099
BrandRS PRO
$0.844
Each (In a Pack of 5)
units
4mm 11mm - 16mm Black White 9.0mm - Slide Plastic
RS Stock No. 467-5888
BrandRS PRO
$0.697
Each (In a Pack of 10)
units
6mm 13mm Circular 17mm Grey Blue - - Push-On Rubber
RS Stock No. 466-0410
BrandRS PRO
$4.02
Each (In a Pack of 5)
units
6.35mm 28.6mm - 13.4mm Black White - - Pointer -
RS Stock No. 581-953
BrandRS PRO
$5.782
Each (In a Pack of 5)
units
6, 6.35 mm, 35 mm 14mm - - Black - - Rotary Switch - -
RS Stock No. 466-4989
BrandRS PRO
$3.224
Each (In a Pack of 5)
units
6.4mm 14mm - 17mm Black White - - Grub Screw Plastic
RS Stock No. 467-6106
BrandRS PRO
$2.895
Each (In a Pack of 10)
units
6mm 13mm D Shaped 15mm Black Black, White - - Push-On Plastic
RS Stock No. 259-6929
BrandRS PRO
$1.966
Each (In a Pack of 5)
units
6mm 16.2mm - 15mm Black, Grey White - - Grub Screw Plastic
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Description:
From Bourns, the H-516 Series Counting Dial is for use with precision potentiometers or other rotating devices of up to 15 turns. The H-516 Series 0 – 15 turn counting dial has a compact design requiring only 22.8 mm diameter ...