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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
$0.1437 - $0.1679 10000 In stock
M5
0.315 in
Natural
Dome
0.394 in
$0.1575 - $0.1836 4000 In stock
M6
0.394 in
Natural
Dome
0.472 in
$0.1116 - $0.1301 20000 In stock
#4-40
0.250 in
Natural
Domed
0.280 in
$0.2843 - $0.3899 4500 In stock
3/8-16
0.565 in
Natural
0.620 in
$0.0935 - $0.1281 3500 In stock
#10-32
0.365 in
Natural
0.400 in
$0.0935 - $0.1281 3000 In stock
#10-24
0.365 in
Natural
0.400 in
$0.0851 - $0.1166 3500 In stock
#4-40
0.250 in
Natural
0.280 in
$0.2343 - $0.3213 36500 In stock
5/16-24
0.500 in
Black
Domed
0.530 in
$0.1427 - $0.1956 17500 In stock
5/16-18
0.500 in
Black
Domed
0.530 in
$0.1301 - $0.296 500 In stock
#4-40
0.250 in
Black
0.280 in
$0.1152 - $0.1344 42000 In stock
#6-32
0.305 in
Natural
Domed
0.345 in
0500632CNB $0.1268 - $0.1478 58000 In stock
#6-32
0.305 in
Black
Domed
0.345 in
$0.083 - $0.096 10000 In stock
#10-32
0.365 in
Natural
Domed
0.400 in
$0.099 - $0.1359 Request the lead time here
1/4-28
0.425 in
Natural
Domed
0.475 in
$0.6273 - $1.428 38000 In stock
7/16-14
0.750 in
Black
Domed
0.810 in
$0.1535 - $0.1788 5000 In stock
M4
0.276 in
Black
0.315 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
$0.1308 - $0.1526 6000 In stock
#8-32
0.330 in
Black
Domed
0.375 in
$0.2606 - $0.3575 4500 In stock
1/4-18
0.750 in
Natural
Domed
0.810 in
  • of 4
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

05M050080LCN

Price Range
$0.1679 - $0.1437

Stock Levels
10000 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 M6; Distance Across Flats 10.0 mm | 0.394 in; Overall Height 12.0 mm | 0.472 in; Natural; Nylon

05M060100LCN

Price Range
$0.1836 - $0.1575

Stock Levels
4000 In stock
Attributes
  • Overall Height
    0.472 in
  • Distance Across Flats
    0.394 in
  • Thread Size
    M6
  • Colour
    Natural
  • 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; Natural; Nylon

0500440CN

Price Range
$0.1301 - $0.1116

Stock Levels
20000 In stock
Attributes
  • Overall Height
    0.280 in
  • Distance Across Flats
    0.250 in
  • Thread Size
    #4-40
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size 3/8-16; Distance Across Flats 14.4 mm | 0.565 in; Overall Height 15.7 mm | 0.620 in; Natural; Nylon

0537516LCN

Price Range
$0.3899 - $0.2843

Stock Levels
4500 In stock
Attributes
  • Overall Height
    0.620 in
  • Distance Across Flats
    0.565 in
  • Thread Size
    3/8-16
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size #10-32; Distance Across Flats 9.3 mm | 0.365 in; Overall Height 10.2 mm | 0.400 in; Natural; Nylon

0501032LCN

Price Range
$0.1281 - $0.0935

Stock Levels
3500 In stock
Attributes
  • Overall Height
    0.400 in
  • Distance Across Flats
    0.365 in
  • Thread Size
    #10-32
  • 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; Natural; Nylon

0501024LCN

Price Range
$0.1281 - $0.0935

Stock Levels
3000 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 #4-40; Distance Across Flats 6.4 mm | 0.250 in; Overall Height 7.1 mm | 0.280 in; Natural; Nylon

0500440LCN

Price Range
$0.1166 - $0.0851

Stock Levels
3500 In stock
Attributes
  • Overall Height
    0.280 in
  • Distance Across Flats
    0.250 in
  • Thread Size
    #4-40
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size 5/16-24; Distance Across Flats 12.7 mm | 0.500 in; Overall Height 13.5 mm | 0.530 in; Black; Nylon

0531224CNB

Price Range
$0.3213 - $0.2343

Stock Levels
36500 In stock
Attributes
  • Overall Height
    0.530 in
  • Distance Across Flats
    0.500 in
  • Thread Size
    5/16-24
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - 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
$0.1956 - $0.1427

Stock Levels
17500 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
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

0500440LCNB

Price Range
$0.296 - $0.1301

Stock Levels
500 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 #6-32; Distance Across Flats 7.7 mm | 0.305 in; Overall Height 8.8 mm | 0.345 in; Natural; Nylon

0500632CN

Price Range
$0.1344 - $0.1152

Stock Levels
42000 In stock
Attributes
  • Overall Height
    0.345 in
  • Distance Across Flats
    0.305 in
  • Thread Size
    #6-32
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size #6-32; Distance Across Flats 7.7 mm | 0.305 in; Overall Height 8.8 mm | 0.345 in; Black; Nylon

0500632CNB

Price Range
$0.1478 - $0.1268

Stock Levels
58000 In stock
Attributes
  • Overall Height
    0.345 in
  • Distance Across Flats
    0.305 in
  • Thread Size
    #6-32
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size #10-32; Distance Across Flats 9.3 mm | 0.365 in; Overall Height 10.2 mm | 0.400 in; Natural; Nylon

0501032CN

Price Range
$0.096 - $0.083

Stock Levels
10000 In stock
Attributes
  • Overall Height
    0.400 in
  • Distance Across Flats
    0.365 in
  • Thread Size
    #10-32
  • Colour
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size 1/4-28; Distance Across Flats 10.8 mm | 0.425 in; Overall Height 12.1 mm | 0.475 in; Natural; Nylon

0525028CN

Price Range
$0.1359 - $0.099

Stock Levels
Request the lead time here
Attributes
  • Overall Height
    0.475 in
  • Distance Across Flats
    0.425 in
  • Thread Size
    1/4-28
  • Colour
    Natural
  • 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; Black; Nylon

0543714CNB

Price Range
$1.428 - $0.6273

Stock Levels
38000 In stock
Attributes
  • Overall Height
    0.810 in
  • Distance Across Flats
    0.750 in
  • Thread Size
    7/16-14
  • 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; Black; Nylon

05M040070LCNB

Price Range
$0.1788 - $0.1535

Stock Levels
5000 In stock
Attributes
  • Overall Height
    0.315 in
  • Distance Across Flats
    0.276 in
  • Thread Size
    M4
  • Colour
    Black
  • 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 #8-32; Distance Across Flats 8.4 mm | 0.330 in; Overall Height 9.5 mm | 0.375 in; Black; Nylon

0500832CNB

Price Range
$0.1526 - $0.1308

Stock Levels
6000 In stock
Attributes
  • Overall Height
    0.375 in
  • Distance Across Flats
    0.330 in
  • Thread Size
    #8-32
  • Colour
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size 1/4-18; Distance Across Flats 10.8 mm | 0.425 in; Overall Height 12.1 mm | 0.475 in; Natural; Nylon

0525018CN

Price Range
$0.3575 - $0.2606

Stock Levels
4500 In stock
Attributes
  • Overall Height
    0.810 in
  • Distance Across Flats
    0.750 in
  • Thread Size
    1/4-18
  • Colour
    Natural
  • Full Material
    Nylon 6/6