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Thumb Screw Knobs

In stock

Thumb screw knobs can be press-fit onto screws to create a small knob for clamping or securing quickly and easily with just the thumb and forefinger.

The wide variety of thumb screw knobs we supply can be used with any length screw and come in a variety of knurling patterns or wing-tip designs. They are ideal for applications where space is restricted and fastening with a tool is not possible.

We carry thumb screws in a variety of styles, including:


The versatility of thumb screw knobs extends to overlapping styles, including knurled lobed and many others. Browse our online catalog to see every style, size, and application type of thumb screw knob available with the quickest lead times.

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For large volumes and customised products, add to your cart and click request a quote, orcontact usand we will respond within 2 working days.

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52 results
Product SKUs information
Item Code Price range Availability Knob Diameter Knob Style Special Offer Brand Compatible Screw Sizes View
$0.41 - $0.65 33 In stock
0.750 in
Push-Pull Knobs
New
Reid Select
$0.48 - $0.48 1200 In stock
0.378 in
Knurled
Reid Select
$0.48 - $0.48 897 In stock
0.500 in
Knurled
Reid Select
$0.48 - $0.48 100 In stock
0.626 in
Knurled
Reid Select
$0.55 - $0.55 Request the lead time here
0.748 in
Knurled
Reid Select
$0.15 - $0.15 30 In stock
0.752 in
Knurled
Reid Select
$0.21 - $0.21 9 In stock
1 in
Knurled
Reid Select
$0.31 - $0.31 Request the lead time here
1.024 in
Knurled
Reid Select
$0.56 - $0.56 106 In stock
1.375 in
L-Knob
Reid Select
$0.39 - $0.39 125 In stock
0.311 in
Knurled
Reid Select
$0.48 - $0.48 395 In stock
0.512 in
Knurled
Reid Select
$0.48 - $0.48 899 In stock
0.626 in
Knurled
Reid Select
$0.55 - $0.55 155 In stock
0.748 in
Knurled
Reid Select
$0.15 - $0.15 51 In stock
0.748 in
Knurled
Reid Select
$0.47 - $0.47 Request the lead time here
0.752 in
Knurled
Reid Select
$0.84 - $0.84 310 In stock
1.024 in
Knurled
Reid Select
$0.83 - $0.83 140 In stock
1 in
Knurled
Reid Select
$79.77 - $125.36 Request the lead time here
Knurled, Lobed, Wing
Reid Select
$0.56 - $0.56 264 In stock
1.25 in
Wing
Reid Select
$0.65 - $0.65 Request the lead time here
1.50 in
Wing
Reid Select
  • of 3
Push-Pull Knurled Knobs; , ,

ICK-2370

Price Range
$0.65 - $0.41

Stock Levels
33 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    KN4C0500K7---21
  • Knob Diameter
    0.750 in
  • Knob Style
    Push-Pull Knobs
  • Special Offer
    New
Thumb Screw Knob; Knurled, Black, Delrin

SLK-200

Price Range
$0.48 - $0.48

Stock Levels
1200 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-928B
  • Base Diameter
    0.327 in
  • Knob Diameter
    0.378 in
  • Color
    Black
Thumb Screw Knob; Knurled, Red, Delrin

SLK-3R

Price Range
$0.48 - $0.48

Stock Levels
897 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-901R
  • Base Diameter
    0.374 in
  • Knob Diameter
    0.500 in
  • Color
    Red
Thumb Screw Knob; Knurled, Red, Delrin

SLK-4R

Price Range
$0.48 - $0.48

Stock Levels
100 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-902R
  • Base Diameter
    0.421 in
  • Knob Diameter
    0.626 in
  • Color
    Red
Thumb Screw Knob; Knurled, Gray, Delrin

SLK-500G

Price Range
$0.55 - $0.55

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-931G
  • Base Diameter
    0.512 in
  • Knob Diameter
    0.748 in
  • Color
    Gray
Thumb Screw Knob; Knurled, Yellow, Delrin

SLK-5Y

Price Range
$0.15 - $0.15

Stock Levels
30 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-903Y
  • Base Diameter
    0.500 in
  • Knob Diameter
    0.752 in
  • Color
    Yellow
Thumb Screw Knob; Knurled, Red, Delrin

SLK-6R

Price Range
$0.21 - $0.21

Stock Levels
9 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-904R
  • Base Diameter
    0.500 in
  • Knob Diameter
    1 in
  • Color
    Red
Thumb Screw Knob; Knurled, Red, Delrin

SLK-700R

Price Range
$0.31 - $0.31

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-933R
  • Base Diameter
    0.63 in
  • Knob Diameter
    1.024 in
  • Color
    Red
Thumb Screw Knob; L-Knob, Black, Delrin

SLK-16

Price Range
$0.56 - $0.56

Stock Levels
106 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-951B
  • Base Diameter
    0.516 in
  • Knob Diameter
    1.375 in
  • Color
    Black
Thumb Screw Knob; Knurled, Black, Delrin

SLK-1

Price Range
$0.39 - $0.39

Stock Levels
125 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-899B
  • Base Diameter
    0.28 in
  • Knob Diameter
    0.311 in
  • Color
    Black
Thumb Screw Knob; Knurled, Black, Delrin

SLK-300

Price Range
$0.48 - $0.48

Stock Levels
395 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-929B
  • Base Diameter
    0.386 in
  • Knob Diameter
    0.512 in
  • Color
    Black
Thumb Screw Knob; Knurled, Black, Delrin

SLK-4

Price Range
$0.48 - $0.48

Stock Levels
899 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-902B
  • Base Diameter
    0.421 in
  • Knob Diameter
    0.626 in
  • Color
    Black
Thumb Screw Knob; Knurled, Black, Delrin

SLK-500

Price Range
$0.55 - $0.55

Stock Levels
155 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-931B
  • Base Diameter
    0.512 in
  • Knob Diameter
    0.748 in
  • Color
    Black
Thumb Screw Knob; Knurled, Red, Delrin

SLK-500R

Price Range
$0.15 - $0.15

Stock Levels
51 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-931R
  • Base Diameter
    0.512 in
  • Knob Diameter
    0.748 in
  • Color
    Red
Thumb Screw Knob; Knurled, Gray, Delrin

SLK-5G

Price Range
$0.47 - $0.47

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-903G
  • Base Diameter
    0.500 in
  • Knob Diameter
    0.752 in
  • Color
    Gray
Thumb Screw Knob; Knurled, Black, Delrin

SLK-600

Price Range
$0.84 - $0.84

Stock Levels
310 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-932B
  • Base Diameter
    0.512 in
  • Knob Diameter
    1.024 in
  • Color
    Black
Thumb Screw Knob; Knurled, Black, Delrin

SLK-7

Price Range
$0.83 - $0.83

Stock Levels
140 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-906B
  • Base Diameter
    0.594 in
  • Knob Diameter
    1 in
  • Color
    Black
Thumb Screw Knob; Knurled, Lobed, Wing, Black, Delrin

SLK-621

Price Range
$125.36 - $79.77

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    99-618-1
  • Color
    Black
  • Full Material
    Delrin 500 Acetal Resin
  • Knob Style
    Knurled, Lobed, Wing
Thumb Screw Knob; Wing, Black, Delrin

SLK-12

Price Range
$0.56 - $0.56

Stock Levels
264 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-924B
  • Base Diameter
    0.516 in
  • Knob Diameter
    1.25 in
  • Color
    Black
Thumb Screw Knob; Wing, Black, Delrin

SLK-13

Price Range
$0.65 - $0.65

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-925B
  • Base Diameter
    0.626 in
  • Knob Diameter
    1.50 in
  • Color
    Black