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Cap Nuts

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Cap Nuts are a type of nut with a dome-shaped top. It secures and covers exposed threaded studs, rods, and bolt ends with a dome-like cap. This protects and secures the fastening component while providing a finished appearance to the exposed threaded end. The dome-shaped caps are designed to be readily grabbed and tightened by hand or wrench.

It works as a locking mechanism, preventing the nut from becoming loose due to vibration or movement. Our range includes Hex Cap Dome Nuts, which have a hexagonal nut shape with a dome or cap that encloses exterior threads. They are available with or without a moulded-in locking thread for applications requiring torque for a more secure assembly. Commonly utilised in automotive, industrial, and commercial applications.

  • Material: Nylon
  • Colour: Natural, Black

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71 results
Product SKUs information
Item Code Price range Availability Thread Size Distance Across Flats Colour Nut Form Overall Height View
$0.3717 - $0.5099 4500 In stock
1/2-13
0.750 in
Natural
Domed
0.810 in
$0.1308 - $0.1526 4000 In stock
M5
0.315 in
Natural
Domed
0.394 in
$0.2613 - $0.3585 1000 In stock
M10
0.669 in
Natural
Domed
0.709 in
$0.2438 - $0.2841 9000 In stock
M8
0.512 in
Black
Domed
0.591 in
$1.0077 - $1.1756 1000 In stock
M20
1.051 in
Black
Domed
1.146 in
$0.1583 - $0.1845 5000 In stock
M5
0.315 in
Black
0.394 in
$0.372 - $0.5102 19000 In stock
M12
0.744 in
Natural
Domed
0.807 in
$0.0905 - $0.1053 102000 In stock
#10-24
0.365 in
Black
Domed
0.400 in
$0.0731 - $0.1002 13000 In stock
1/4-20
0.425 in
Black
Domed
0.475 in
$0.2657 - $0.6044 500 In stock
3/8-32
0.565 in
Black
Domed
0.620 in
$0.1226 - $0.1431 5000 In stock
#4-40
0.250 in
Black
Domed
0.280 in
$0.0822 - $0.096 16000 In stock
#10-24
0.365 in
Natural
Domed
0.400 in
$0.0665 - $0.0911 26000 In stock
1/4-20
0.425 in
Natural
Domed
0.475 in
$0.1734 - $0.2379 500 In stock
3/8-32
0.565 in
Natural
Domed
0.620 in
$0.6462 - $0.8865 2250 In stock
5/8-11
0.935 in
Black
Domed
0.970 in
$0.1577 - $0.1838 4000 In stock
M6
0.394 in
Black
Domed
0.472 in
$0.5879 - $0.8063 250 In stock
M16
0.933 in
Natural
Domed
0.976 in
$0.4091 - $0.5609 20500 In stock
1/2-13
0.750 in
Black
Domed
0.810 in
$0.1439 - $0.1679 10000 In stock
M5
0.315 in
Black
Domed
0.394 in
$0.4101 - $0.5625 500 In stock
7/16-14
0.750 in
Natural
Domed
0.810 in
  • of 4
Hexagonal Cap Nut - Thread Size 1/2-13; Distance Across Flats 19.1 mm | 0.750 in; Overall Height 20.6 mm | 0.810 in; Natural; Nylon

0550013CN

Price Range
$0.5099 - $0.3717

Stock Levels
4500 In stock
Attributes
  • Overall Height
    0.810 in
  • Distance Across Flats
    0.750 in
  • Thread Size
    1/2-13
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size M5; Distance Across Flats 8.0 mm | 0.315 in; Overall Height 10.0 mm | 0.394 in; Natural; Nylon

05M050080CN

Price Range
$0.1526 - $0.1308

Stock Levels
4000 In stock
Attributes
  • Overall Height
    0.394 in
  • Distance Across Flats
    0.315 in
  • Thread Size
    M5
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size M10; Distance Across Flats 17.0 mm | 0.669 in; Overall Height 18.0 mm | 0.709 in; Natural; Nylon

05M100150CN

Price Range
$0.3585 - $0.2613

Stock Levels
1000 In stock
Attributes
  • Overall Height
    0.709 in
  • Distance Across Flats
    0.669 in
  • Thread Size
    M10
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size M8; Distance Across Flats 13.0 mm | 0.512 in; Overall Height 15.0 mm | 0.591 in; Black; Nylon

05M080125CNB

Price Range
$0.2841 - $0.2438

Stock Levels
9000 In stock
Attributes
  • Overall Height
    0.591 in
  • Distance Across Flats
    0.512 in
  • Thread Size
    M8
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size M20; Distance Across Flats 26.7 mm | 1.051 in; Overall Height 29.1 mm | 1.146 in; Black; Nylon

05M200250CNB

Price Range
$1.1756 - $1.0077

Stock Levels
1000 In stock
Attributes
  • Overall Height
    1.146 in
  • Distance Across Flats
    1.051 in
  • Thread Size
    M20
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size M5; Distance Across Flats 8.0 mm | 0.315 in; Overall Height 10.0 mm | 0.394 in; Black; Nylon

05M050080LCNB

Price Range
$0.1845 - $0.1583

Stock Levels
5000 In stock
Attributes
  • Overall Height
    0.394 in
  • Distance Across Flats
    0.315 in
  • Thread Size
    M5
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size M12; Distance Across Flats 18.9 mm | 0.744 in; Overall Height 20.5 mm | 0.807 in; Natural; Nylon

05M120175CN

Price Range
$0.5102 - $0.372

Stock Levels
19000 In stock
Attributes
  • Overall Height
    0.807 in
  • Distance Across Flats
    0.744 in
  • Thread Size
    M12
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size #10-24; Distance Across Flats 9.3 mm | 0.365 in; Overall Height 10.2 mm | 0.400 in; Black; Nylon

0501024CNB

Price Range
$0.1053 - $0.0905

Stock Levels
102000 In stock
Attributes
  • Overall Height
    0.400 in
  • Distance Across Flats
    0.365 in
  • Thread Size
    #10-24
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size 1/4-20; Distance Across Flats 10.8 mm | 0.425 in; Overall Height 12.1 mm | 0.475 in; Black; Nylon

0525020CNB

Price Range
$0.1002 - $0.0731

Stock Levels
13000 In stock
Attributes
  • Overall Height
    0.475 in
  • Distance Across Flats
    0.425 in
  • Thread Size
    1/4-20
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size 3/8-32; Distance Across Flats 14.4 mm | 0.565 in; Overall Height 15.7 mm | 0.620 in; Black; Nylon

0537532CNB

Price Range
$0.6044 - $0.2657

Stock Levels
500 In stock
Attributes
  • Overall Height
    0.620 in
  • Distance Across Flats
    0.565 in
  • Thread Size
    3/8-32
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size #4-40; Distance Across Flats 6.4 mm | 0.250 in; Overall Height 7.1 mm | 0.280 in; Black; Nylon

0500440CNB

Price Range
$0.1431 - $0.1226

Stock Levels
5000 In stock
Attributes
  • Overall Height
    0.280 in
  • Distance Across Flats
    0.250 in
  • Thread Size
    #4-40
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size #10-24; Distance Across Flats 9.3 mm | 0.365 in; Overall Height 10.2 mm | 0.400 in; Natural; Nylon

0501024CN

Price Range
$0.096 - $0.0822

Stock Levels
16000 In stock
Attributes
  • Overall Height
    0.400 in
  • Distance Across Flats
    0.365 in
  • Thread Size
    #10-24
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size 1/4-20; Distance Across Flats 10.8 mm | 0.425 in; Overall Height 12.1 mm | 0.475 in; Natural; Nylon

0525020CN

Price Range
$0.0911 - $0.0665

Stock Levels
26000 In stock
Attributes
  • Overall Height
    0.475 in
  • Distance Across Flats
    0.425 in
  • Thread Size
    1/4-20
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size 3/8-32; Distance Across Flats 14.4 mm | 0.565 in; Overall Height 15.7 mm | 0.620 in; Natural; Nylon

0537532CN

Price Range
$0.2379 - $0.1734

Stock Levels
500 In stock
Attributes
  • Overall Height
    0.620 in
  • Distance Across Flats
    0.565 in
  • Thread Size
    3/8-32
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size 5/8-11; Distance Across Flats 23.7 mm | 0.935 in; Overall Height 24.6 mm | 0.970 in; Black; Nylon

0562511CNB

Price Range
$0.8865 - $0.6462

Stock Levels
2250 In stock
Attributes
  • Overall Height
    0.970 in
  • Distance Across Flats
    0.935 in
  • Thread Size
    5/8-11
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size M6; Distance Across Flats 10.0 mm | 0.394 in; Overall Height 12.0 mm | 0.472 in; Black; Nylon

05M060100CNB

Price Range
$0.1838 - $0.1577

Stock Levels
4000 In stock
Attributes
  • Overall Height
    0.472 in
  • Distance Across Flats
    0.394 in
  • Thread Size
    M6
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size M16; Distance Across Flats 23.7 mm | 0.933 in; Overall Height 24.8 mm | 0.976 in; Natural; Nylon

05M160200CN

Price Range
$0.8063 - $0.5879

Stock Levels
250 In stock
Attributes
  • Overall Height
    0.976 in
  • Distance Across Flats
    0.933 in
  • Thread Size
    M16
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size 1/2-13; Distance Across Flats 19.1 mm | 0.750 in; Overall Height 20.6 mm | 0.810 in; Black; Nylon

0550013CNB

Price Range
$0.5609 - $0.4091

Stock Levels
20500 In stock
Attributes
  • Overall Height
    0.810 in
  • Distance Across Flats
    0.750 in
  • Thread Size
    1/2-13
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size M5; Distance Across Flats 8.0 mm | 0.315 in; Overall Height 10.0 mm | 0.394 in; Black; Nylon

05M050080CNB

Price Range
$0.1679 - $0.1439

Stock Levels
10000 In stock
Attributes
  • Overall Height
    0.394 in
  • Distance Across Flats
    0.315 in
  • Thread Size
    M5
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size 7/16-14; Distance Across Flats 19.1 mm | 0.750 in; Overall Height 20.6 mm | 0.810 in; Natural; Nylon

0543714CN

Price Range
$0.5625 - $0.4101

Stock Levels
500 In stock
Attributes
  • Overall Height
    0.810 in
  • Distance Across Flats
    0.750 in
  • Thread Size
    7/16-14
  • Colour
    Natural
  • Full Material
    Nylon 6/6