Knobs

Hand knobs and thumb screws are available in many styles and materials to be used for pushing, pulling, tightening, loosening and as fixed handles. They are widely used in various applications from industrial and construction machinery to lighting and audio visual equipment. The knobs are fitted with either a protruding screw or threaded inserts in a range of thread sizes.


Material
The material can help you to determine the most suitable environment to use the knob in. They are commonly manufactured from:
Plastics
Stainless steel
Aluminium
Zinc

Styles
There are many types of hand knobs available to suit the area and application it is to be used in. Some of the most common styles include:

Star knobs – Their shape allows a good grip to be easily turned by hand. They have a varying number of lobes (arms) and are selected depending on the grip and pressure required.

Ball knobs – Ideal for use with handles and levers.

Thumb screws - Can be fitted in confined spaces and offer a greater grip that a plain nut and can be tightened by hand or with a tool.

T - Knobs – Easily fitted and gripped with an ergonomic design for quick control adjustment.

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Description Price Thread Thread Diameter Thread Length Knob Shape Mounting Type Knob Diameter Hole Diameter Hole Length Body Material Insert Material Colour Application
RS Stock No. 702-7544
BrandRS PRO
$3.267
Each (In a Pack of 10)
units
M6 x 10 M6 10mm Round Threaded Stud 22mm - - Duroplast Steel Black Fabrication & Maintenance
RS Stock No. 478-484
BrandRS PRO
$2.106
Each (In a Pack of 10)
units
M6 x 30 M6 30mm 2-Arm Threaded Stud 35mm - - Polyamide Steel Black -
RS Stock No. 918-5349
Mfr. Part No.167495
BrandElesa
$13.044
Each (In a Pack of 5)
units
M10 x 40 M10 40mm Multiple Lobes Threaded Hole 50mm - - Polyamide Stainless Steel Black Machinery
RS Stock No. 771-724
BrandRS PRO
$3.352
Each (In a Pack of 20)
units
- M8 - Multiple Lobes Unthreaded Hole 38mm - - Thermoplastic - Black -
RS Stock No. 448-8892
BrandRS PRO
$1.90
Each (In a Pack of 10)
units
M6 x 16 M6 16mm Round Threaded Stud 25mm - - Polymer Steel Black -
RS Stock No. 161-155
BrandRS PRO
$1.854
Each (In a Pack of 10)
units
M6 x 25 M6 25mm Multiple Lobes Threaded Stud 40mm - - Thermoplastic Steel Black -
RS Stock No. 702-7796
BrandRS PRO
$0.781
Each (In a Pack of 10)
units
- M4 - Ball Threaded Hole 15mm - - Nylon - Black -
RS Stock No. 448-8921
BrandRS PRO
$2.468
Each (In a Pack of 10)
units
M10 x 30 M10 30mm Round Threaded Stud 31mm - - Polymer Steel Black -
RS Stock No. 237-334
BrandRS PRO
$8.43
Each (In a Pack of 2)
units
M6 x 20 M6 20mm 2-Arm Threaded Stud 25mm - - Stainless Steel Stainless Steel Silver -
RS Stock No. 702-7816
BrandRS PRO
$5.583
Each (In a Pack of 10)
units
- - - Ball Unthreaded Hole 50mm 12mm 40mm Nylon - Black -
RS Stock No. 771-752
BrandRS PRO
$2.298
Each (In a Pack of 20)
units
- M6 - 2-Arm Unthreaded Hole 30mm - - Thermoplastic Steel Black -
RS Stock No. 686-020
BrandRS PRO
$2.452
Each (In a Pack of 10)
units
- M6 - Ball Threaded Hole 25mm 14mm - Duroplast - Black -
RS Stock No. 918-5330
Mfr. Part No.167385
BrandElesa
$9.686
Each (In a Pack of 5)
units
M8 x 40 M8 40mm Multiple Lobes Threaded Stud 40mm - - Polyamide Stainless Steel Black Machinery
RS Stock No. 702-7728
BrandRS PRO
$4.323
Each (In a Pack of 10)
units
M10 x 15 M10 15mm 4-Arm Threaded Through Hole 50mm - 29mm Thermoplastic Steel Black -
RS Stock No. 702-7582
BrandRS PRO
$7.975
Each (In a Pack of 10)
units
M10 x 25 M10 25mm Multiple Lobes Threaded Stud 60mm - - Thermoplastic Steel Black -
RS Stock No. 478-490
BrandRS PRO
$27.63
Each
units
M8 x 20 M8 20mm Multiple Lobes Threaded Hole 40mm - - Aluminium - - -
RS Stock No. 161-105
BrandRS PRO
$3.728
Each (In a Pack of 10)
units
M6 x 9 M6 9mm Multiple Lobes Threaded Hole 50mm - - Thermoplastic Brass Black -
RS Stock No. 448-9277
Mfr. Part No.166346
BrandElesa
$8.172
Each (In a Pack of 5)
units
M8 x 13 M8 13mm Multiple Lobes Threaded Hole 40mm - - Polymer Stainless Steel Black -
RS Stock No. 771-651
BrandRS PRO
$1.314
Each (In a Pack of 20)
units
- M3 - Round Unthreaded Hole 10mm - - Thermoplastic - Black -
RS Stock No. 686-575
BrandRS PRO
$2.909
Each (In a Pack of 10)
units
- - - Ball Unthreaded Hole 32mm 8mm 15mm Duroplast - Black -
Related Products
Nylon Polyamide 6 knobs with stud, female inserts ...
Description:
Nylon Polyamide 6 knobs with stud, female inserts and through threadZinc plated steel studs and alloy female threadingsMatt black finishWorking temperature -30°C to +85°CMelting point +215°CTolerant of weak acids, with excellent resistance to chlorinated hydrocarbons.
Nylon Polyamide 6 knobs with stud, female inserts ...
Description:
Nylon Polyamide 6 knobs with stud, female inserts and through threadZinc plated steel studs and alloy female threadingsMatt black finishWorking temperature -30°C to +85°CMelting point +215°CTolerant of weak acids, with excellent resistance to chlorinated hydrocarbons.
ABS matt black plastic knobs with zinc plated ...
Description:
ABS matt black plastic knobs with zinc plated steel male studs or light alloy female threaded inserts. Span 50mm.
Brought to you by RS Pro, these phenolic ...
Description:
Brought to you by RS Pro, these phenolic knobs are a great choice for sturdiness and quality. Phenolic knobs, also known as “star knobs” are available with zinc plated male stubs, brass threaded insert or through hole type with brass ...