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Cap Nuts

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Cap Nuts, also known as a Blind Nut or a Crown Nut, is a nut that has a domed end on one side. The Domed Cap Nut is used to cover exposed threaded stud, rod and bolt ends with a dome-like cap. This offers protection and safety to the fastening assembly, while also creating a finished appearance to the exposed threaded end.

Our range is made up from Hex Cap Dome Nuts that feature a hexagonal nut shape with the dome or cap that encloses external threads. They are offered with or without a molded-in locking thread for applications which require torque for a more secure assembly.

  • Material: Nylon 6/6
  • Colors: Natural and Black
  • Flame resistance rating UL94 V2.

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71 results
Product SKUs information
Item Code Price range Availability Thread Size Distance Across Flats Color Nut Form Overall Height View
$0.0958 - $0.1119 10000 In stock
M5
0.315 in
Natural
Dome
0.394 in
05M060100LCN $0.105 - $0.1224 4000 In stock
M6
0.394 in
Natural
Dome
0.472 in
$0.0744 - $0.0867 20000 In stock
#4-40
0.250 in
Natural
Domed
0.280 in
$0.1895 - $0.2599 4500 In stock
3/8-16
0.565 in
Natural
0.620 in
$0.0623 - $0.0854 3000 In stock
#10-32
0.365 in
Natural
0.400 in
$0.0623 - $0.0854 3000 In stock
#10-24
0.365 in
Natural
0.400 in
$0.0567 - $0.0777 3000 In stock
#4-40
0.250 in
Natural
0.280 in
$0.1562 - $0.2142 36500 In stock
5/16-24
0.500 in
Black
Domed
0.530 in
$0.0951 - $0.1304 17500 In stock
5/16-18
0.500 in
Black
Domed
0.530 in
$0.0867 - $0.1973 500 In stock
#4-40
0.250 in
Black
0.280 in
0500632CN $0.0768 - $0.0896 42000 In stock
#6-32
0.305 in
Natural
Domed
0.345 in
$0.0845 - $0.0985 58000 In stock
#6-32
0.305 in
Black
Domed
0.345 in
0501032CN $0.0553 - $0.064 10000 In stock
#10-32
0.365 in
Natural
Domed
0.400 in
$0.066 - $0.0906 Request the lead time here
1/4-28
0.425 in
Natural
Domed
0.475 in
$0.4182 - $0.952 38000 In stock
7/16-14
0.750 in
Black
Domed
0.810 in
$0.1023 - $0.1192 5000 In stock
M4
0.276 in
Black
0.315 in
05M080125CNB $0.1625 - $0.1894 9000 In stock
M8
0.512 in
Black
Domed
0.591 in
$0.6718 - $0.7837 1000 In stock
M20
1.051 in
Black
Domed
1.146 in
0500832CNB $0.0872 - $0.1017 6000 In stock
#8-32
0.330 in
Black
Domed
0.375 in
0525018CN $0.1737 - $0.2383 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
$0.1119 - $0.0958

Stock Levels
10000 In stock
Attributes
  • Overall Height
    0.394 in
  • Distance Across Flats
    0.315 in
  • Thread Size
    M5
  • Color
    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
$0.1224 - $0.105

Stock Levels
4000 In stock
Attributes
  • Overall Height
    0.472 in
  • Distance Across Flats
    0.394 in
  • Thread Size
    M6
  • Color
    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
$0.0867 - $0.0744

Stock Levels
20000 In stock
Attributes
  • Overall Height
    0.280 in
  • Distance Across Flats
    0.250 in
  • Thread Size
    #4-40
  • Color
    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
$0.2599 - $0.1895

Stock Levels
4500 In stock
Attributes
  • Overall Height
    0.620 in
  • Distance Across Flats
    0.565 in
  • Thread Size
    3/8-16
  • Color
    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
$0.0854 - $0.0623

Stock Levels
3000 In stock
Attributes
  • Overall Height
    0.400 in
  • Distance Across Flats
    0.365 in
  • Thread Size
    #10-32
  • Color
    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
$0.0854 - $0.0623

Stock Levels
3000 In stock
Attributes
  • Overall Height
    0.400 in
  • Distance Across Flats
    0.365 in
  • Thread Size
    #10-24
  • Color
    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
$0.0777 - $0.0567

Stock Levels
3000 In stock
Attributes
  • Overall Height
    0.280 in
  • Distance Across Flats
    0.250 in
  • Thread Size
    #4-40
  • Color
    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
$0.2142 - $0.1562

Stock Levels
36500 In stock
Attributes
  • Overall Height
    0.530 in
  • Distance Across Flats
    0.500 in
  • Thread Size
    5/16-24
  • Color
    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
$0.1304 - $0.0951

Stock Levels
17500 In stock
Attributes
  • Overall Height
    0.530 in
  • Distance Across Flats
    0.500 in
  • Thread Size
    5/16-18
  • Color
    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
$0.1973 - $0.0867

Stock Levels
500 In stock
Attributes
  • Overall Height
    0.280 in
  • Distance Across Flats
    0.250 in
  • Thread Size
    #4-40
  • Color
    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
$0.0896 - $0.0768

Stock Levels
42000 In stock
Attributes
  • Overall Height
    0.345 in
  • Distance Across Flats
    0.305 in
  • Thread Size
    #6-32
  • Color
    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
$0.0985 - $0.0845

Stock Levels
58000 In stock
Attributes
  • Overall Height
    0.345 in
  • Distance Across Flats
    0.305 in
  • Thread Size
    #6-32
  • Color
    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
$0.064 - $0.0553

Stock Levels
10000 In stock
Attributes
  • Overall Height
    0.400 in
  • Distance Across Flats
    0.365 in
  • Thread Size
    #10-32
  • Color
    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
$0.0906 - $0.066

Stock Levels
Request the lead time here
Attributes
  • Overall Height
    0.475 in
  • Distance Across Flats
    0.425 in
  • Thread Size
    1/4-28
  • Color
    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
$0.952 - $0.4182

Stock Levels
38000 In stock
Attributes
  • Overall Height
    0.810 in
  • Distance Across Flats
    0.750 in
  • Thread Size
    7/16-14
  • Color
    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
$0.1192 - $0.1023

Stock Levels
5000 In stock
Attributes
  • Overall Height
    0.315 in
  • Distance Across Flats
    0.276 in
  • Thread Size
    M4
  • Color
    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
$0.1894 - $0.1625

Stock Levels
9000 In stock
Attributes
  • Overall Height
    0.591 in
  • Distance Across Flats
    0.512 in
  • Thread Size
    M8
  • Color
    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
$0.7837 - $0.6718

Stock Levels
1000 In stock
Attributes
  • Overall Height
    1.146 in
  • Distance Across Flats
    1.051 in
  • Thread Size
    M20
  • Color
    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
$0.1017 - $0.0872

Stock Levels
6000 In stock
Attributes
  • Overall Height
    0.375 in
  • Distance Across Flats
    0.330 in
  • Thread Size
    #8-32
  • Color
    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
$0.2383 - $0.1737

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