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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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52 results
Product SKUs information
Item Code Price range Availability Knob Diameter Knob Style Special Offer Brand Compatible Screw Sizes View
$0.56 - $0.56 161 In stock
1.25 in
Wing
Reid Select
$0.48 - $0.48 997 In stock
0.500 in
Knurled
Reid Select
$0.37 - $0.37 Request the lead time here
0.748 in
Knurled
Reid Select
$96.32 - $151.36 Request the lead time here
Knurled, Lobed, Wing, L-Knob
Reid Select
$0.87 - $0.87 Request the lead time here
1.5 in
Lobed
Reid Select
$0.48 - $0.48 119 In stock
1.00 in
Wing
Reid Select
$0.48 - $0.48 1000 In stock
0.378 in
Knurled
Reid Select
$0.15 - $0.15 30 In stock
0.752 in
Knurled
Reid Select
$0.31 - $0.31 Request the lead time here
1.024 in
Knurled
Reid Select
$1.19 - $1.19 76 In stock
1.496 in
Lobed
Reid Select
$0.56 - $0.56 40 In stock
1.181 in
Wing
Reid Select
$0.41 - $0.65 33 In stock
0.750 in
Push-Pull Knobs
New
Reid Select
  • of 3
Thumb Screw Knob; Wing, Black, Delrin

SLK-12

Price Range
$0.56 - $0.56

Stock Levels
161 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; Knurled, Red, Delrin

SLK-3R

Price Range
$0.48 - $0.48

Stock Levels
997 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, Gray, Delrin

SLK-500G

Price Range
$0.37 - $0.37

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, Lobed, Wing, L-Knob, Black, Delrin

SLK-622

Price Range
$151.36 - $96.32

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    99-622-3
  • Color
    Black
  • Full Material
    Delrin 500 Acetal Resin
  • Knob Style
    Knurled, Lobed, Wing, L-Knob
Thumb Screw Knob; Lobed, Yellow, Delrin

SLK-10Y

Price Range
$0.87 - $0.87

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-909Y
  • Base Diameter
    0.705 in
  • Knob Diameter
    1.5 in
  • Color
    Yellow
Thumb Screw Knob; Wing, Red, Delrin

SLK-11R

Price Range
$0.48 - $0.48

Stock Levels
119 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-923R
  • Base Diameter
    0.437 in
  • Knob Diameter
    1.00 in
  • Color
    Red
Thumb Screw Knob; Knurled, Black, Delrin

SLK-200

Price Range
$0.48 - $0.48

Stock Levels
1000 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, 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-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; Lobed, Black, Delrin

SLK-800

Price Range
$1.19 - $1.19

Stock Levels
76 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-934B
  • Base Diameter
    0.555 in
  • Knob Diameter
    1.496 in
  • Color
    Black
Thumb Screw Knob; Wing, Black, Delrin

SLK-1200

Price Range
$0.56 - $0.56

Stock Levels
40 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-938B
  • Base Diameter
    0.531 in
  • Knob Diameter
    1.181 in
  • Color
    Black
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