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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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41 results
Product SKUs information
Item Code Price range Availability Knob Diameter Knob Style Special Offer Brand Compatible Screw Sizes View
$0.18 - $0.18 22 In stock
1.496 in
Wing
Reid Select
$0.55 - $0.55 155 In stock
0.748 in
Knurled
Reid Select
$0.29 - $0.29 121 In stock
0.311 in
Knurled
Reid Select
$0.48 - $0.48 1386 In stock
0.626 in
Knurled
Reid Select
$0.38 - $0.38 106 In stock
1.375 in
L-Knob
Reid Select
$0.53 - $0.53 37 In stock
1.5 in
Lobed
Reid Select
$0.56 - $0.56 Request the lead time here
1.25 in
Wing
Reid Select
$0.65 - $0.65 Request the lead time here
1.50 in
Wing
Reid Select
$0.31 - $0.31 Request the lead time here
1.024 in
Knurled
Reid Select
$0.48 - $0.48 Request the lead time here
1.024 in
Wing
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
$0.30 - $0.30 Request the lead time here
0.311 in
Knurled
Reid Select
$0.14 - $0.14 297 In stock
0.63 in
Knurled
Reid Select
$0.15 - $0.15 51 In stock
0.748 in
Knurled
Reid Select
$1.29 - $1.29 396 In stock
1.5 in
Lobed
Reid Select
$1.19 - $1.19 Request the lead time here
1.5 in
Lobed
Reid Select
$0.34 - $0.34 80 In stock
0.626 in
Knurled
Reid Select
$0.84 - $0.84 307 In stock
1.024 in
Knurled
Reid Select
$1.19 - $1.19 72 In stock
1.5 in
Lobed
Reid Select
  • of 3
Thumb Screw Knob; Wing, Black, Delrin

SLK-1300

Price Range
$0.18 - $0.18

Stock Levels
22 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-939B
  • Base Diameter
    0.65 in
  • Knob Diameter
    1.496 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, Black, Delrin

SLK-1

Price Range
$0.29 - $0.29

Stock Levels
121 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-4

Price Range
$0.48 - $0.48

Stock Levels
1386 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; L-Knob, Black, Delrin

SLK-16

Price Range
$0.38 - $0.38

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; 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; 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
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
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; Wing, Black, Delrin

SLK-1100

Price Range
$0.48 - $0.48

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-937B
  • Base Diameter
    0.472 in
  • Knob Diameter
    1.024 in
  • Color
    Black
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, Red, Delrin

SLK-1R

Price Range
$0.30 - $0.30

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-899R
  • Base Diameter
    0.28 in
  • Knob Diameter
    0.311 in
  • Color
    Red
Thumb Screw Knob; Knurled, Black, Delrin

SLK-400

Price Range
$0.14 - $0.14

Stock Levels
297 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-930B
  • Base Diameter
    0.453 in
  • Knob Diameter
    0.63 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; Lobed, Black, Delrin

SLK-10

Price Range
$1.29 - $1.29

Stock Levels
396 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; Lobed, Red, Delrin

SLK-8R

Price Range
$1.19 - $1.19

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-907R
  • Base Diameter
    0.531 in
  • Knob Diameter
    1.5 in
  • Color
    Red
Thumb Screw Knob; Knurled, Red, Delrin

SLK-4R

Price Range
$0.34 - $0.34

Stock Levels
80 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, 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; Lobed, Black, Delrin

SLK-8

Price Range
$1.19 - $1.19

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