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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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28 results
Product SKUs information
Item Code Price range Availability Knob Diameter Knob Style Special Offer Brand Compatible Screw Sizes View
$0.40 - $0.40 Request the lead time here
0.626 in
Knurled
Reid Select
$0.48 - $0.48 Request the lead time here
0.626 in
Knurled
Reid Select
$0.55 - $0.55 100 In stock
0.752 in
Knurled
Reid Select
$0.69 - $0.69 101 In stock
1.024 in
Knurled
Reid Select
$0.83 - $0.83 226 In stock
1.024 in
Knurled
Reid Select
$0.14 - $0.14 197 In stock
0.63 in
Knurled
Reid Select
$0.55 - $0.55 486 In stock
0.752 in
Knurled
Reid Select
$0.30 - $0.30 Request the lead time here
0.311 in
Knurled
Reid Select
  • of 2
Thumb Screw Knob; Knurled, Gray, Delrin

SLK-4G

Price Range
$0.40 - $0.40

Stock Levels
Request the lead time here
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-902G
  • Base Diameter
    0.421 in
  • Knob Diameter
    0.626 in
  • Color
    Gray
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, Red, Delrin

SLK-5R

Price Range
$0.55 - $0.55

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

SLK-600G

Price Range
$0.69 - $0.69

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, Black, Delrin

SLK-700

Price Range
$0.83 - $0.83

Stock Levels
226 In stock
Attributes
  • Brand
    Reid Select
  • Manufacturer Part Number
    83-98-933B
  • Base Diameter
    0.63 in
  • Knob Diameter
    1.024 in
  • Color
    Black
Thumb Screw Knob; Knurled, Black, Delrin

SLK-400

Price Range
$0.14 - $0.14

Stock Levels
197 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, Black, Delrin

SLK-5

Price Range
$0.55 - $0.55

Stock Levels
486 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, 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