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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
$0.1394 - $0.3171 88500 In stock
#10-32
0.365 in
Black
Locking
0.400 in
$0.0711 - $0.0975 25500 In stock
1/4-20
0.425 in
Black
Domed
0.475 in
$0.1263 - $0.1733 15500 In stock
5/16-18
0.5 in
Natural
Domed
0.531 in
$0.2586 - $0.5885 500 In stock
3/8-32
0.565 in
Black
Domed
0.620 in
$0.3983 - $0.5462 25500 In stock
1/2-13
0.750 in
Black
Domed
0.810 in
$0.1235 - $0.144 4000 In stock
M4
0.276 in
Natural
Domed
0.315 in
$0.1401 - $0.1635 13000 In stock
M5
0.315 in
Black
Domed
0.394 in
$0.1686 - $0.1967 2000 In stock
M6
0.394 in
Black
Locking
0.472 in
$0.2799 - $0.384 36000 In stock
M10
0.669 in
Black
Domed
0.709 in
$0.8754 - $1.9938 1250 In stock
M16
0.933 in
Black
Domed
0.976 in
$0.1389 - $0.1905 31000 In stock
5/16-18
0.500 in
Black
Domed
0.530 in
  • of 4
Hexagonal N/A - Thread Size #10-32; Distance Across Flats 9.3 mm | 0.365 in; Overall Height 10.2 mm | 0.400 in; Black; Nylon

0501032LCNB

Price Range
$0.3171 - $0.1394

Stock Levels
88500 In stock
Attributes
  • Overall Height
    0.400 in
  • Distance Across Flats
    0.365 in
  • Thread Size
    #10-32
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal N/A - 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
$0.0975 - $0.0711

Stock Levels
25500 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 5/16-18; Distance Across Flats 12.7 mm | 0.5 in; Overall Height 13.5 mm | 0.531 in; Natural; Nylon

0531218CN

Price Range
$0.1733 - $0.1263

Stock Levels
15500 In stock
Attributes
  • Overall Height
    0.531 in
  • Distance Across Flats
    0.5 in
  • Thread Size
    5/16-18
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal N/A - 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
$0.5885 - $0.2586

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 N/A - 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
$0.5462 - $0.3983

Stock Levels
25500 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 M4; Distance Across Flats 7.0 mm | 0.276 in; Overall Height 8.0 mm | 0.315 in; Natural; Nylon

05M040070CN

Price Range
$0.144 - $0.1235

Stock Levels
4000 In stock
Attributes
  • Overall Height
    0.315 in
  • Distance Across Flats
    0.276 in
  • Thread Size
    M4
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal N/A - 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
$0.1635 - $0.1401

Stock Levels
13000 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 N/A - Thread Size M6; Distance Across Flats 10.0 mm | 0.394 in; Overall Height 12.0 mm | 0.472 in; Black; Nylon

05M060100LCNB

Price Range
$0.1967 - $0.1686

Stock Levels
2000 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 M10; Distance Across Flats 17.0 mm | 0.669 in; Overall Height 18.0 mm | 0.709 in; Black; Nylon

05M100150CNB

Price Range
$0.384 - $0.2799

Stock Levels
36000 In stock
Attributes
  • Overall Height
    0.709 in
  • Distance Across Flats
    0.669 in
  • Thread Size
    M10
  • 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; Black; Nylon

05M160200CNB

Price Range
$1.9938 - $0.8754

Stock Levels
1250 In stock
Attributes
  • Overall Height
    0.976 in
  • Distance Across Flats
    0.933 in
  • Thread Size
    M16
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal N/A - Thread Size 5/16-18; Distance Across Flats 12.7 mm | 0.500 in; Overall Height 13.5 mm | 0.530 in; Black; Nylon

0531218CNB

Price Range
$0.1905 - $0.1389

Stock Levels
31000 In stock
Attributes
  • Overall Height
    0.530 in
  • Distance Across Flats
    0.500 in
  • Thread Size
    5/16-18
  • Colour
    Black
  • Full Material
    Nylon 6/6