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Thumb Screw Knobs - Knurled

In stock

Knurled Knobs, or Thumb Knobs easily press fit on to screws, creating a small knob for clamping or securing an application. These Thumb Screw Knobs, also known as Thumb Bolts, can be used with any length of screw. The knurled edge is easily gripped for tightening and loosening.

Our offer features a range of black and orange Knurled Knobs, made from Polyoxymethylene (POM). Several options available; the first two options offer easy assembly with bolts and nuts, with a single hammer-stroke. Suitable for M4, M5, M6, M8 and M10 hexagon bolts and nuts. They are in compliance with DIN 555, 601, 934, 558, 571, 931 and 7976. The third options easily assembles on socket head screws, also with one hammer-stroke. Available for inside hexagon bolts from M3 up to M10, and in compliance with DIN 912, 6912, 7984.

Also available are Knurled Screws or Nuts made from either Steel, with a tensile strength class of 5.8 (500 N/mm). This option has a visible face fine turned and blackened. The other option made from Stainless Steel AISI 303 - the visible face find turned with a matte, shot-blasted finish. Various threads available include M5 knob screw options.

A Thumb Screw Knob made from Acetal is also in our thumb knob range. These can be used as a thumb screw or a knob, with caps available for use with any length screw. Colour options include Black, Blue and Red.

The range also features a black Polyamide (PA 6) Knurled Kbob, suitable for Socket Head Caps Screws, which easily assembles into the base of the knob. Not special tools or glue is required. The knurled edge increases grip.

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Product SKUs information
Item Code Price range Availability Knob Diameter Colour Base Diameter Buy
1220560
£ 1.1033 - £ 1.1248 10 In stock
12.0 mm
Black
6.0 mm
037100059905
£ 0.7087 - £ 1.6711 6800 In stock
36.0 mm
Black
17.0 mm
038050059905
£ 0.4375 - £ 1.0318 28058 In stock
17.0 mm
Black
8.5 mm
037050259905
£ 0.4657 - £ 1.0998 2720 In stock
20.0 mm
Black
8.0 mm
037080259905
£ 0.7409 - £ 1.744 In production
36.0 mm
Black
17.0 mm
1220564
£ 1.1368 - £ 1.1597 In production
12.0 mm
Black
6.0 mm
1220568
£ 1.3301 - £ 1.3556 543 In stock
16.0 mm
Black
8.0 mm
466350
£ 0.5476 - £ 1.15 In production
13.0 mm
Black
10.0 mm
038050159905
£ 0.506 - £ 1.1904 4054 In stock
20.0 mm
Black
8.5 mm
037080000905
£ 0.5852 - £ 1.3238 In production
25.0 mm
Orange
13.0 mm
037060359905
£ 0.6375 - £ 1.5075 4263 In stock
25.0 mm
Black
10.0 mm
466351
£ 0.6322 - £ 1.3276 In production
16.0 mm
Black
12.0 mm
038060000905
£ 0.463 - £ 1.0947 1718 In stock
20.0 mm
Orange
10.0 mm
037050200905
£ 0.4657 - £ 1.0998 In production
20.0 mm
Orange
8.0 mm
037040300905
£ 0.4845 - £ 1.1425 In production
17.0 mm
Orange
7.0 mm
037040100905
£ 0.3892 - £ 0.9211 1346 In stock
13.0 mm
Orange
7.0 mm
038080100905
£ 0.7449 - £ 1.6862 2100 In stock
36.0 mm
Orange
130.0 mm
038060059905
£ 0.463 - £ 1.0947 21536 In stock
20.0 mm
Black
10.0 mm
037060000905
£ 0.4416 - £ 1.0419 5024 In stock
20.0 mm
Orange
10.0 mm
037060300905
£ 0.6375 - £ 1.5075 8425 In stock
25.0 mm
Orange
10.0 mm
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Knurled Knob - Compatible Screw Sizes - M3 ; Base Diameter - 6.0 mm | 0.236 in ; Overall Height - 17.5 mm | 0.689 in ; Knob Diameter - 12.0 mm | 0.472 in

1220560

Price Range
£ 1.1248 - £ 1.1033

Stock Levels
10 In stock
Attributes
  • Colour
    Black
  • Knob Style
    Knurled
  • Material
    Steel
  • Type
    Screw
  • Head Height
    2.5 mm
Thumb Screw Knob - Compatible Screw Sizes - M10 ; Base Diameter - 17.0 mm | 0.669 in ; Overall Height - 10.0 mm | 0.394 in ; Knob Diameter - 36.0 mm | 1.417 in

037100059905

Price Range
£ 1.6711 - £ 0.7087

Stock Levels
6800 In stock
Attributes
  • Colour
    Black
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    36.0 mm
  • Knob Length
    8.0 mm
Thumb Screw Knob - Compatible Screw Sizes - M5 ; Base Diameter - 8.5 mm | 0.335 in ; Overall Height - 6.5 mm | 0.256 in ; Knob Diameter - 17.0 mm | 0.669 in

038050059905

Price Range
£ 1.0318 - £ 0.4375

Stock Levels
28058 In stock
Attributes
  • Colour
    Black
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    17.0 mm
  • Knob Length
    4.5 mm
Thumb Screw Knob - Compatible Screw Sizes - M5 ; Base Diameter - 8.0 mm | 0.315 in ; Overall Height - 6.5 mm | 0.256 in ; Knob Diameter - 20.0 mm | 0.787 in

037050259905

Price Range
£ 1.0998 - £ 0.4657

Stock Levels
2720 In stock
Attributes
  • Colour
    Black
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    20.0 mm
  • Knob Length
    5.0 mm
Thumb Screw Knob - Compatible Screw Sizes - M10 ; Base Diameter - 17.0 mm | 0.669 in ; Overall Height - 10.0 mm | 0.394 in ; Knob Diameter - 36.0 mm | 1.417 in

037080259905

Price Range
£ 1.744 - £ 0.7409

Stock Levels
In production
Attributes
  • Colour
    Black
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    36.0 mm
  • Knob Length
    8.0 mm
Knurled Knob - Compatible Screw Sizes - M3 ; Base Diameter - 6.0 mm | 0.236 in ; Overall Height - 23.5 mm | 0.925 in ; Knob Diameter - 12.0 mm | 0.472 in

1220564

Price Range
£ 1.1597 - £ 1.1368

Stock Levels
In production
Attributes
  • Colour
    Black
  • Knob Style
    Knurled
  • Material
    Steel
  • Type
    Screw
  • Head Height
    2.5 mm
Knurled Knob - Compatible Screw Sizes - M4 ; Base Diameter - 8.0 mm | 0.315 in ; Overall Height - 19.5 mm | 0.768 in ; Knob Diameter - 16.0 mm | 0.63 in

1220568

Price Range
£ 1.3556 - £ 1.3301

Stock Levels
543 In stock
Attributes
  • Colour
    Black
  • Knob Style
    Knurled
  • Material
    Steel
  • Type
    Screw
  • Head Height
    3.5 mm
Thumb Screw Knob - Compatible Screw Sizes - M4 ; Base Diameter - 10.0 mm | 0.394 in ; Overall Height - 5.0 mm | 0.197 in ; Knob Diameter - 13.0 mm | 0.512 in

466350

Price Range
£ 1.15 - £ 0.5476

Stock Levels
In production
Attributes
  • Colour
    Black
  • Knob Style
    Knurled
  • Material
    Nylon
  • Knob Diameter
    13.0 mm
  • Overall Height
    5.0 mm
Thumb Screw Knob - Compatible Screw Sizes - M5 ; Base Diameter - 8.5 mm | 0.335 in ; Overall Height - 6.5 mm | 0.256 in ; Knob Diameter - 20.0 mm | 0.787 in

038050159905

Price Range
£ 1.1904 - £ 0.506

Stock Levels
4054 In stock
Attributes
  • Colour
    Black
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    20.0 mm
  • Knob Length
    5.0 mm
Thumb Screw Knob - Compatible Screw Sizes - M8 ; Base Diameter - 13.0 mm | 0.512 in ; Overall Height - 8.0 mm | 0.315 in ; Knob Diameter - 25.0 mm | 0.984 in

037080000905

Price Range
£ 1.3238 - £ 0.5852

Stock Levels
In production
Attributes
  • Colour
    Orange
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    25.0 mm
  • Knob Length
    6.0 mm
Thumb Screw Knob - Compatible Screw Sizes - M6 ; Base Diameter - 10.0 mm | 0.394 in ; Overall Height - 18.0 mm | 0.709 in ; Knob Diameter - 25.0 mm | 0.984 in

037060359905

Price Range
£ 1.5075 - £ 0.6375

Stock Levels
4263 In stock
Attributes
  • Colour
    Black
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    25.0 mm
  • Knob Length
    6.0 mm
Thumb Screw Knob - Compatible Screw Sizes - M5 ; Base Diameter - 12.0 mm | 0.472 in ; Overall Height - 6.0 mm | 0.236 in ; Knob Diameter - 16.0 mm | 0.63 in

466351

Price Range
£ 1.3276 - £ 0.6322

Stock Levels
In production
Attributes
  • Colour
    Black
  • Knob Style
    Knurled
  • Material
    Nylon
  • Knob Diameter
    16.0 mm
  • Overall Height
    6.0 mm
Thumb Screw Knob - Compatible Screw Sizes - M6 ; Base Diameter - 10.0 mm | 0.394 in ; Overall Height - 7.5 mm | 0.295 in ; Knob Diameter - 20.0 mm | 0.787 in

038060000905

Price Range
£ 1.0947 - £ 0.463

Stock Levels
1718 In stock
Attributes
  • Colour
    Orange
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    20.0 mm
  • Knob Length
    5.0 mm
Thumb Screw Knob - Compatible Screw Sizes - M5 ; Base Diameter - 8.0 mm | 0.315 in ; Overall Height - 6.5 mm | 0.256 in ; Knob Diameter - 20.0 mm | 0.787 in

037050200905

Price Range
£ 1.0998 - £ 0.4657

Stock Levels
In production
Attributes
  • Colour
    Orange
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    20.0 mm
  • Knob Length
    5.0 mm
Thumb Screw Knob - Compatible Screw Sizes - M4 ; Base Diameter - 7.0 mm | 0.276 in ; Overall Height - 11.5 mm | 0.453 in ; Knob Diameter - 17.0 mm | 0.669 in

037040300905

Price Range
£ 1.1425 - £ 0.4845

Stock Levels
In production
Attributes
  • Colour
    Orange
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    17.0 mm
  • Knob Length
    4.5 mm
Thumb Screw Knob - Compatible Screw Sizes - M4 ; Base Diameter - 7.0 mm | 0.276 in ; Overall Height - 9.5 mm | 0.374 in ; Knob Diameter - 13.0 mm | 0.512 in

037040100905

Price Range
£ 0.9211 - £ 0.3892

Stock Levels
1346 In stock
Attributes
  • Colour
    Orange
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    13.0 mm
  • Overall Height
    9.5 mm
Thumb Screw Knob - Compatible Screw Sizes - M8 ; Base Diameter - 130.0 mm | 5.118 in ; Overall Height - 9.5 mm | 0.374 in ; Knob Diameter - 36.0 mm | 1.417 in

038080100905

Price Range
£ 1.6862 - £ 0.7449

Stock Levels
2100 In stock
Attributes
  • Colour
    Orange
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    36.0 mm
  • Knob Length
    8.0 mm
Thumb Screw Knob - Compatible Screw Sizes - M6 ; Base Diameter - 10.0 mm | 0.394 in ; Overall Height - 7.5 mm | 0.295 in ; Knob Diameter - 20.0 mm | 0.787 in

038060059905

Price Range
£ 1.0947 - £ 0.463

Stock Levels
21536 In stock
Attributes
  • Colour
    Black
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    20.0 mm
  • Knob Length
    5.0 mm
Thumb Screw Knob - Compatible Screw Sizes - M6 ; Base Diameter - 10.0 mm | 0.394 in ; Overall Height - 6.5 mm | 0.256 in ; Knob Diameter - 20.0 mm | 0.787 in

037060000905

Price Range
£ 1.0419 - £ 0.4416

Stock Levels
5024 In stock
Attributes
  • Colour
    Orange
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    20.0 mm
  • Knob Length
    5.0 mm
Thumb Screw Knob - Compatible Screw Sizes - M6 ; Base Diameter - 10.0 mm | 0.394 in ; Overall Height - 18.0 mm | 0.709 in ; Knob Diameter - 25.0 mm | 0.984 in

037060300905

Price Range
£ 1.5075 - £ 0.6375

Stock Levels
8425 In stock
Attributes
  • Colour
    Orange
  • Knob Style
    Knurled
  • Material
    POM
  • Knob Diameter
    25.0 mm
  • Knob Length
    6.0 mm