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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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143 results

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Product SKUs information
Item Code Price range Availability Thread Size Point Type Material Head Height Thread Length Type Brand View
$1.95 - $1.95 Request the lead time here
#6-32
Standard
Brass
0.188 in
0.500 in
Thumb Screws
Reid Select
$12.59 - $12.59 Request the lead time here
#8-32
Standard
Steel
0.188 in
0.625 in
Thumb Screws
Reid Select
$1.57 - $1.57 Request the lead time here
#6-32
Standard
Steel
0.188 in
0.313 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
$5.62 - $5.62 Request the lead time here
M4
Standard
Stainless Steel
0.197 in
0.63 in
Thumb Screws
Reid Select
$1.37 - $1.37 Request the lead time here
#8-32
Standard
Steel
0.188 in
0.375 in
Thumb Screws
Reid Select
$2.29 - $2.29 Request the lead time here
#4-40
Standard
Steel
0.188 in
0.375 in
Thumb Screws
Reid Select
$5.44 - $5.44 Request the lead time here
M4
Standard
Stainless Steel
0.197 in
0.551 in
Thumb Screws
Reid Select
$6.30 - $6.30 27 In stock
1/4-20
Dog
Steel
.310 in
1.750 in
Thumb Screws
Reid Select
$3.90 - $3.90 32 In stock
#10-24
Flat
Steel
.190 in
1.500 in
Thumb Screws
Reid Select
$9.32 - $9.32 75 In stock
3/8-16
Flat
Steel
.310 in
2.000 in
Thumb Screws
Reid Select
$20.42 - $20.42 Request the lead time here
#4-40
Standard
Brass
0.188 in
0.375 in
Thumb Screws
Reid Select
$8.91 - $8.91 Request the lead time here
M6
Standard
Stainless Steel
0.236 in
0.748 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
$8.67 - $8.67 143 In stock
M6
Standard
Stainless Steel
0.236 in
0.709 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
$6.26 - $6.26 93 In stock
1/4-20
Flat
Steel
.220 in
2.500 in
Thumb Screws
Reid Select
$20.42 - $20.42 Request the lead time here
#8-32
Standard
Brass
0.188 in
0.500 in
Thumb Screws
Reid Select
$1.13 - $1.13 21 In stock
#10-32
Standard
Steel
0.188 in
0.375 in
Thumb Screws
Reid Select
$9.91 - $9.91 Request the lead time here
1/4-20
Standard
Stainless Steel
0.250 in
0.750 in
Thumb Screws
Reid Select
    • of 8
Brass Knurled Thumb Screws - Thread Size #6-32; Thread Length 12.7 mm | 0.500 in

AJ-465

Price Range
$1.95 - $1.95

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 >
Steel Knurled Thumb Screws - Thread Size #8-32; Thread Length 15.9 mm | 0.625 in

AJ-527

Price Range
$12.59 - $12.59

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    #8-32
  • Thread Length
    0.625 in
  • Length Under Head
    .625 in
  • Head Height
    0.188 in
Quick View
View Product >
Steel Knurled Thumb Screws - Thread Size #6-32; Thread Length 8 mm | 0.313 in

AJ-562

Price Range
$1.57 - $1.57

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    #6-32
  • Thread Length
    0.313 in
  • Length Under Head
    .313 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 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 #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 >
Steel Knurled Thumb Screws - Thread Size #4-40; Thread Length 9.5 mm | 0.375 in

AJ-556

Price Range
$2.29 - $2.29

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    #4-40
  • 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 M4; Thread Length 14.0 mm | 0.551 in

AJ-636

Price Range
$5.44 - $5.44

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    M4
  • Thread Length
    0.551 in
  • Length Under Head
    0.551 in
  • Head Height
    0.197 in
Quick View
View Product >
Steel Knurled Thumb Screws - Thread Size 1/4-20; Thread Length 44.5 mm | 1.750 in

KHS-105

Price Range
$6.30 - $6.30

Stock Levels
27 In stock
Attributes
  • Type
    Thumb Screws
  • Thread Size
    1/4-20
  • Thread Length
    1.750 in
  • Length Under Head
    1.750 in
  • Head Height
    .310 in
Quick View
View Product >
Steel Knurled Thumb Screws - Thread Size #10-24; Thread Length 38.1 mm | 1.500 in

KHS-1S

Price Range
$3.90 - $3.90

Stock Levels
32 In stock
Attributes
  • Type
    Thumb Screws
  • Thread Size
    #10-24
  • Thread Length
    1.500 in
  • Length Under Head
    1.500 in
  • Head Height
    .190 in
Quick View
View Product >
Steel Knurled Thumb Screws - Thread Size 3/8-16; Thread Length 50.8 mm | 2.000 in

KHS-4S

Price Range
$9.32 - $9.32

Stock Levels
75 In stock
Attributes
  • Type
    Thumb Screws
  • Thread Size
    3/8-16
  • Thread Length
    2.000 in
  • Length Under Head
    2.000 in
  • Head Height
    .310 in
Quick View
View Product >
Brass Knurled Thumb Screws - Thread Size #4-40; Thread Length 9.5 mm | 0.375 in

AJ-453

Price Range
$20.42 - $20.42

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    #4-40
  • 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 M6; Thread Length 19.0 mm | 0.748 in

AJ-669

Price Range
$8.91 - $8.91

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    M6
  • Thread Length
    0.748 in
  • Length Under Head
    0.748 in
  • Head Height
    0.236 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 >
Stainless Steel Knurled Thumb Screws - Thread Size M6; Thread Length 18.0 mm | 0.709 in

AJ-666

Price Range
$8.67 - $8.67

Stock Levels
143 In stock
Attributes
  • Type
    Thumb Screws
  • Thread Size
    M6
  • Thread Length
    0.709 in
  • Length Under Head
    0.709 in
  • Head Height
    0.236 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 1/4-20; Thread Length 63.5 mm | 2.500 in

KHS-2

Price Range
$6.26 - $6.26

Stock Levels
93 In stock
Attributes
  • Type
    Thumb Screws
  • Thread Size
    1/4-20
  • Thread Length
    2.500 in
  • Length Under Head
    2.500 in
  • Head Height
    .220 in
Quick View
View Product >
Brass Knurled Thumb Screws - Thread Size #8-32; Thread Length 12.7 mm | 0.500 in

AJ-471

Price Range
$20.42 - $20.42

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    #8-32
  • Thread Length
    0.500 in
  • Length Under Head
    .500 in
  • Head Height
    0.188 in
Quick View
View Product >
Steel Knurled Thumb Screws - Thread Size #10-32; Thread Length 9.5 mm | 0.375 in

AJ-530

Price Range
$1.13 - $1.13

Stock Levels
21 In stock
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 >
Stainless Steel Knurled Thumb Screws - Thread Size 1/4-20; Thread Length 19.1 mm | 0.750 in

AJ-595

Price Range
$9.91 - $9.91

Stock Levels
Request the lead time here
Attributes
  • Type
    Thumb Screws
  • Thread Size
    1/4-20
  • Thread Length
    0.750 in
  • Length Under Head
    .750 in
  • Head Height
    0.250 in
Quick View
View Product >