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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
$0.15 - $0.15 51 In stock
0.748 in
Knurled
Reid Select
$0.53 - $0.53 37 In stock
1.5 in
Lobed
Reid Select
$0.48 - $0.48 188 In stock
0.500 in
Knurled
Reid Select
$0.55 - $0.55 428 In stock
0.752 in
Knurled
Reid Select
$0.84 - $0.84 307 In stock
1.024 in
Knurled
Reid Select
$79.77 - $125.36 Request the lead time here
Knurled, Lobed, Wing
Reid Select
$1.19 - $1.19 180 In stock
1.5 in
Lobed
Reid Select
$0.56 - $0.56 264 In stock
1.25 in
Wing
Reid Select
$1.29 - $1.29 417 In stock
1.5 in
Lobed
Reid Select
$0.53 - $0.53 Request the lead time here
1 in
Knurled
Reid Select
$0.56 - $0.56 Request the lead time here
1.25 in
Wing
Reid Select
$0.41 - $0.65 33 In stock
0.750 in
Push-Pull Knobs
New
Reid Select
$0.48 - $0.48 297 In stock
0.374 in
Knurled
Reid Select
$0.48 - $0.48 Request the lead time here
0.626 in
Knurled
Reid Select
$0.84 - $0.84 177 In stock
1 in
Knurled
Reid Select
$80.30 - $126.19 2 In stock
Knurled, Lobed, Wing
Reid Select
$0.87 - $0.87 Request the lead time here
1.5 in
Lobed
Reid Select
$0.48 - $0.48 39 In stock
1.00 in
Wing
Reid Select
$96.32 - $151.36 Request the lead time here
Knurled, Lobed, Wing, L-Knob
Reid Select
$0.48 - $0.48 106 In stock
0.374 in
Knurled
Reid Select
  • of 3
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; Lobed, Black, Delrin

SLK-9

Price Range
$0.53 - $0.53

Stock Levels
37 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-908B
  • Base Diameter
    0.579 in
  • Knob Diameter
    1.5 in
  • Color
    Black
Thumb Screw Knob; Knurled, Black, Delrin

SLK-3

Price Range
$0.48 - $0.48

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

SLK-5

Price Range
$0.55 - $0.55

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

SLK-600

Price Range
$0.84 - $0.84

Stock Levels
307 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, 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; Lobed, Black, Delrin

SLK-8

Price Range
$1.19 - $1.19

Stock Levels
180 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-907B
  • Base Diameter
    0.531 in
  • Knob Diameter
    1.5 in
  • Color
    Black
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; Lobed, Black, Delrin

SLK-10

Price Range
$1.29 - $1.29

Stock Levels
417 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-909B
  • Base Diameter
    0.705 in
  • Knob Diameter
    1.5 in
  • Color
    Black
Thumb Screw Knob; Knurled, Yellow, Delrin

SLK-6Y

Price Range
$0.53 - $0.53

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-904Y
  • Base Diameter
    0.500 in
  • Knob Diameter
    1 in
  • Color
    Yellow
Thumb Screw Knob; Wing, Yellow, Delrin

SLK-12Y

Price Range
$0.56 - $0.56

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-924Y
  • Base Diameter
    0.516 in
  • Knob Diameter
    1.25 in
  • Color
    Yellow
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, Red, Delrin

SLK-2R

Price Range
$0.48 - $0.48

Stock Levels
297 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-900R
  • Base Diameter
    0.327 in
  • Knob Diameter
    0.374 in
  • Color
    Red
Thumb Screw Knob; Knurled, Yellow, Delrin

SLK-4Y

Price Range
$0.48 - $0.48

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-902Y
  • Base Diameter
    0.421 in
  • Knob Diameter
    0.626 in
  • Color
    Yellow
Thumb Screw Knob; Knurled, Black, Delrin

SLK-6

Price Range
$0.84 - $0.84

Stock Levels
177 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-904B
  • Base Diameter
    0.500 in
  • Knob Diameter
    1 in
  • Color
    Black
Thumb Screw Knob; Knurled, Lobed, Wing, Black, Delrin

SLK-280

Price Range
$126.19 - $80.30

Stock Levels
2 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    99-617-3
  • Color
    Black
  • Full Material
    Delrin 500 Acetal Resin
  • Knob Style
    Knurled, Lobed, Wing
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
39 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, 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; Knurled, Black, Delrin

SLK-2

Price Range
$0.48 - $0.48

Stock Levels
106 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-900B
  • Base Diameter
    0.327 in
  • Knob Diameter
    0.374 in
  • Color
    Black