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Knurled Screws

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A knurled screw is a screw with a textured surface (knurling), usually on the head, designed for easy hand-turning without tools. The knurling provides enhanced grip, making it useful for frequent adjustments and in situations where tools are inconvenient. They come in various head styles (like thumb screws) and are used across many industries for tool-free fastening and adjustments.

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Product SKUs information
Item Code Price range Availability Thread Size Point Type Material Head Height Thread Length Type Brand View
$1.37 - $1.37 Request the lead time here
#8-32
Standard
Steel
0.188 in
0.375 in
Thumb Screws
Reid Select
$9.39 - $9.39 Request the lead time here
1/4-20
Standard
Stainless Steel
0.250 in
0.625 in
Thumb Screws
Reid Select
$8.46 - $8.46 28 In stock
1/4-20
Standard
Stainless Steel
0.250 in
0.500 in
Thumb Screws
Reid Select
$6.78 - $6.78 Request the lead time here
1/4-20
Dog
Steel
.310 in
2.250 in
Thumb Screws
Reid Select
$2.43 - $2.43 Request the lead time here
#10-32
Standard
Steel
0.188 in
0.625 in
Thumb Screws
Reid Select
$1.87 - $1.87 Request the lead time here
#6-32
Standard
Stainless Steel
0.188 in
0.500 in
Thumb Screws
Reid Select
$5.62 - $5.62 Request the lead time here
M4
Standard
Stainless Steel
0.197 in
0.63 in
Thumb Screws
Reid Select
$5.58 - $5.58 Request the lead time here
1/4-20
Dog
Steel
.310 in
1.250 in
Thumb Screws
Reid Select
$9.52 - $9.52 9 In stock
1/2-13
Dog
Steel
0.500 in
2.750 in
Thumb Screws
Reid Select
$12.83 - $12.83 27 In stock
3/8-16
Flat
Steel
.310 in
3.000 in
Thumb Screws
Reid Select
$4.53 - $4.53 6 In stock
#10-32
Flat
Steel
.190 in
2.000 in
Thumb Screws
Reid Select
$1.69 - $1.69 Request the lead time here
#10-32
Standard
Aluminum
0.188 in
0.375 in
Thumb Screws
Reid Select
$20.42 - $20.42 Request the lead time here
1/4-20
Standard
Brass
0.250 in
0.500 in
Thumb Screws
Reid Select
$12.65 - $12.65 Request the lead time here
1/4-20
Standard
Steel
0.250 in
0.625 in
Thumb Screws
Reid Select
$3.02 - $3.02 Request the lead time here
M3
Standard
Stainless Steel
0.197 in
0.512 in
Thumb Screws
Reid Select
$3.15 - $3.15 21 In stock
M5
Standard
Stainless Steel
0.197 in
0.63 in
Thumb Screws
Reid Select
$3.40 - $3.40 Request the lead time here
#10-24
Flat
Steel
.190 in
2.000 in
Thumb Screws
Reid Select
$5.12 - $5.12 Request the lead time here
5/16-18
Dog
Steel
.380 in
2.250 in
Thumb Screws
Reid Select
$5.50 - $5.50 619 In stock
5/16-18
Flat
Steel
0.250 in
3.000 in
Thumb Screws
Reid Select
$5.60 - $5.60 50 In stock
#10-24
Dog
Steel
0.250 in
0.750 in
Thumb Screws
Reid Select
    • of 8
Steel Knurled Thumb Screws - Thread Size #8-32; Thread Length 9.5 mm | 0.375 in

AJ-521

Price Range
$1.37 - $1.37

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    #8-32
  • Thread Length
    0.375 in
  • Length Under Head
    .375 in
  • Head Height
    0.188 in
Quick View
View Product >
Stainless Steel Knurled Thumb Screws - Thread Size 1/4-20; Thread Length 15.9 mm | 0.625 in

AJ-592

Price Range
$9.39 - $9.39

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    1/4-20
  • Thread Length
    0.625 in
  • Length Under Head
    .625 in
  • Head Height
    0.250 in
Quick View
View Product >
Stainless Steel Knurled Thumb Screws - Thread Size 1/4-20; Thread Length 12.7 mm | 0.500 in

AJ-589

Price Range
$8.46 - $8.46

Stock Levels
28 In stock
Attributes
  • Type
    Thumb Screws
  • Thread Size
    1/4-20
  • Thread Length
    0.500 in
  • Length Under Head
    .500 in
  • Head Height
    0.250 in
Quick View
View Product >
Steel Knurled Thumb Screws - Thread Size 1/4-20; Thread Length 57.2 mm | 2.250 in

KHS-106

Price Range
$6.78 - $6.78

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    1/4-20
  • Thread Length
    2.250 in
  • Length Under Head
    2.250 in
  • Head Height
    .310 in
Quick View
View Product >
Steel Knurled Thumb Screws - Thread Size #10-32; Thread Length 15.9 mm | 0.625 in

AJ-536

Price Range
$2.43 - $2.43

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    #10-32
  • Thread Length
    0.625 in
  • Length Under Head
    .625 in
  • Head Height
    0.188 in
Quick View
View Product >
Stainless Steel Knurled Thumb Screws - Thread Size #6-32; Thread Length 12.7 mm | 0.500 in

AJ-568

Price Range
$1.87 - $1.87

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    #6-32
  • Thread Length
    0.500 in
  • Length Under Head
    .500 in
  • Head Height
    0.188 in
Quick View
View Product >
Stainless Steel Knurled Thumb Screws - Thread Size M4; Thread Length 16.0 mm | 0.63 in

AJ-639

Price Range
$5.62 - $5.62

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    M4
  • Thread Length
    0.63 in
  • Length Under Head
    0.63 in
  • Head Height
    0.197 in
Quick View
View Product >
Steel Knurled Thumb Screws - Thread Size 1/4-20; Thread Length 31.8 mm | 1.250 in

KHS-104

Price Range
$5.58 - $5.58

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    1/4-20
  • Thread Length
    1.250 in
  • Length Under Head
    1.250 in
  • Head Height
    .310 in
Quick View
View Product >
Steel Knurled Thumb Screws - Thread Size 1/2-13; Thread Length 69.9 mm | 2.750 in

KHS-113

Price Range
$9.52 - $9.52

Stock Levels
9 In stock
Attributes
  • Type
    Thumb Screws
  • Thread Size
    1/2-13
  • Thread Length
    2.750 in
  • Length Under Head
    2.750 in
  • Head Height
    0.500 in
Quick View
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Steel Knurled Thumb Screws - Thread Size 3/8-16; Thread Length 76.2 mm | 3.000 in

KHS-4L

Price Range
$12.83 - $12.83

Stock Levels
27 In stock
Attributes
  • Type
    Thumb Screws
  • Thread Size
    3/8-16
  • Thread Length
    3.000 in
  • Length Under Head
    3.000 in
  • Head Height
    .310 in
Quick View
View Product >
Steel Knurled Thumb Screws - Thread Size #10-32; Thread Length 50.8 mm | 2.000 in

KHS-0

Price Range
$4.53 - $4.53

Stock Levels
6 In stock
Attributes
  • Type
    Thumb Screws
  • Thread Size
    #10-32
  • Thread Length
    2.000 in
  • Length Under Head
    2.000 in
  • Head Height
    .190 in
Quick View
View Product >
Aluminum Knurled Thumb Screws - Thread Size #10-32; Thread Length 9.5 mm | 0.375 in

AJ-430

Price Range
$1.69 - $1.69

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    #10-32
  • Thread Length
    0.375 in
  • Length Under Head
    .375 in
  • Head Height
    0.188 in
Quick View
View Product >
Brass Knurled Thumb Screws - Thread Size 1/4-20; Thread Length 12.7 mm | 0.500 in

AJ-486

Price Range
$20.42 - $20.42

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    1/4-20
  • Thread Length
    0.500 in
  • Length Under Head
    .500 in
  • Head Height
    0.250 in
Quick View
View Product >
Steel Knurled Thumb Screws - Thread Size 1/4-20; Thread Length 15.9 mm | 0.625 in

AJ-542

Price Range
$12.65 - $12.65

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    1/4-20
  • Thread Length
    0.625 in
  • Length Under Head
    .625 in
  • Head Height
    0.250 in
Quick View
View Product >
Stainless Steel Knurled Thumb Screws - Thread Size M3; Thread Length 13.0 mm | 0.512 in

AJ-612

Price Range
$3.02 - $3.02

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    M3
  • Thread Length
    0.512 in
  • Length Under Head
    0.512 in
  • Head Height
    0.197 in
Quick View
View Product >
Stainless Steel Knurled Thumb Screws - Thread Size M5; Thread Length 16.0 mm | 0.63 in

AJ-654

Price Range
$3.15 - $3.15

Stock Levels
21 In stock
Attributes
  • Type
    Thumb Screws
  • Thread Size
    M5
  • Thread Length
    0.63 in
  • Length Under Head
    0.63 in
  • Head Height
    0.197 in
Quick View
View Product >
Steel Knurled Thumb Screws - Thread Size #10-24; Thread Length 50.8 mm | 2.000 in

KHS-1

Price Range
$3.40 - $3.40

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    #10-24
  • Thread Length
    2.000 in
  • Length Under Head
    2.000 in
  • Head Height
    .190 in
Quick View
View Product >
Steel Knurled Thumb Screws - Thread Size 5/16-18; Thread Length 57.2 mm | 2.250 in

KHS-109

Price Range
$5.12 - $5.12

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    5/16-18
  • Thread Length
    2.250 in
  • Length Under Head
    2.250 in
  • Head Height
    .380 in
Quick View
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Steel Knurled Thumb Screws - Thread Size 5/16-18; Thread Length 76.2 mm | 3.000 in

KHS-3L

Price Range
$5.50 - $5.50

Stock Levels
619 In stock
Attributes
  • Type
    Thumb Screws
  • Thread Size
    5/16-18
  • Thread Length
    3.000 in
  • Length Under Head
    3.000 in
  • Head Height
    0.250 in
Quick View
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Steel Knurled Thumb Screws - Thread Size #10-24; Thread Length 19.1 mm | 0.750 in

KHS-101

Price Range
$5.60 - $5.60

Stock Levels
50 In stock
Attributes
  • Type
    Thumb Screws
  • Thread Size
    #10-24
  • Thread Length
    0.750 in
  • Length Under Head
    .7500 in
  • Head Height
    0.250 in
Quick View
View Product >