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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
$0.48 - $0.48 1597 In stock
0.500 in
Knurled
Reid Select
$0.37 - $0.37 Request the lead time here
0.748 in
Knurled
Reid Select
$0.21 - $0.21 9 In stock
1 in
Knurled
Reid Select
$0.38 - $0.38 106 In stock
1.375 in
L-Knob
Reid Select
$1.19 - $1.19 Request the lead time here
1.5 in
Lobed
Reid Select
$0.56 - $0.56 Request the lead time here
1.25 in
Wing
Reid Select
$0.15 - $0.15 30 In stock
0.752 in
Knurled
Reid Select
$0.48 - $0.48 Request the lead time here
0.626 in
Knurled
Reid Select
$0.53 - $0.53 101 In stock
1.024 in
Knurled
Reid Select
$96.32 - $151.36 Request the lead time here
Knurled, Lobed, Wing, L-Knob
Reid Select
$0.65 - $0.65 Request the lead time here
1.50 in
Wing
Reid Select
$0.56 - $0.56 161 In stock
1.25 in
Wing
Reid Select
$0.33 - $0.33 333 In stock
1.00 in
Wing
Reid Select
$0.29 - $0.29 121 In stock
0.311 in
Knurled
Reid Select
$0.48 - $0.48 1387 In stock
0.626 in
Knurled
Reid Select
$0.15 - $0.15 51 In stock
0.748 in
Knurled
Reid Select
$0.53 - $0.53 Request the lead time here
1 in
Knurled
Reid Select
$1.29 - $1.29 396 In stock
1.5 in
Lobed
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
  • of 3
Thumb Screw Knob; Knurled, Red, Delrin

SLK-3R

Price Range
$0.48 - $0.48

Stock Levels
1597 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, 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; 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, 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; Wing, Red, Delrin

SLK-12R

Price Range
$0.56 - $0.56

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

SLK-600G

Price Range
$0.53 - $0.53

Stock Levels
101 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-932G
  • Base Diameter
    0.512 in
  • Knob Diameter
    1.024 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; 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; 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; Wing, Black, Delrin

SLK-11

Price Range
$0.33 - $0.33

Stock Levels
333 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-923B
  • Base Diameter
    0.437 in
  • Knob Diameter
    1.00 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
1387 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, 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, 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; 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, 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