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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
$0.1562 - $0.2142 36500 In stock
5/16-24
0.500 in
Black
Domed
0.530 in
$0.1419 - $0.1947 1500 In stock
5/16-24
0.500 in
Natural
Domed
0.530 in
$0.0951 - $0.1304 1500 In stock
5/16-18
0.500 in
Black
Domed
0.530 in
$0.1633 - $0.224 500 In stock
5/16-18
0.500 in
Black
0.530 in
$0.2899 - $0.6601 3000 In stock
3/8-16
0.565 in
Black
0.620 in
$0.2489 - $0.2905 13000 In stock
3/8-16
0.565 in
Black
Domed
0.620 in
0562511CN $0.3448 - $0.7848 8750 In stock
5/8-11
0.935 in
Natural
Domed
0.970 in
$0.0443 - $0.0607 21500 In stock
1/4-20
0.425 in
Natural
0.475 in
$0.0585 - $0.0803 16500 In stock
#6-32
0.305 in
Natural
0.345 in
$0.0604 - $0.0829 21000 In stock
#8-32
0.330 in
Natural
0.375 in
0537516CN $0.2264 - $0.264 38000 In stock
3/8-16
0.565 in
Natural
Domed
0.620 in
$0.1484 - $0.2037 12000 In stock
5/16-18
0.500 in
Natural
0.530 in
$0.0623 - $0.0854 2000 In stock
#10-32
0.365 in
Natural
0.400 in
$0.0958 - $0.1119 9000 In stock
M5
0.315 in
Natural
Domed
0.394 in
05M060100LCN $0.105 - $0.1224 2000 In stock
M6 x 1.0
0.394 in
Natural
Domed
0.472 in
$0.0744 - $0.0867 Request the lead time here
#4-40
0.250 in
Natural
Domed
0.280 in
0500832CNB $0.0872 - $0.1017 11000 In stock
#8-32
0.330 in
Black
Domed
0.375 in
$0.0954 - $0.2171 1000 In stock
#10-24
0.365 in
Black
0.400 in
0525018CN $0.1737 - $0.2383 4500 In stock
1/4-18
0.750 in
Natural
Domed
0.810 in
$0.0487 - $0.0668 3000 In stock
1/4-20
0.425 in
Black
0.475 in
  • of 4
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 6/6

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 5/16-24; Distance Across Flats 12.7 mm | 0.500 in; Overall Height 13.5 mm | 0.530 in; Natural; Nylon 6/6

0531224CN

Price Range
$0.1947 - $0.1419

Stock Levels
1500 In stock
Attributes
  • Overall Height
    0.530 in
  • Distance Across Flats
    0.500 in
  • Thread Size
    5/16-24
  • Color
    Natural
  • 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 6/6

0531218CNB

Price Range
$0.1304 - $0.0951

Stock Levels
1500 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 5/16-18; Distance Across Flats 12.7 mm | 0.500 in; Overall Height 13.5 mm | 0.530 in; Black; Nylon 6/6

0531218LCNB

Price Range
$0.224 - $0.1633

Stock Levels
500 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 3/8-16; Distance Across Flats 14.4 mm | 0.565 in; Overall Height 15.7 mm | 0.620 in; Black; Nylon 6/6

0537516LCNB

Price Range
$0.6601 - $0.2899

Stock Levels
3000 In stock
Attributes
  • Overall Height
    0.620 in
  • Distance Across Flats
    0.565 in
  • Thread Size
    3/8-16
  • Color
    Black
  • 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; Black; Nylon 6/6

0537516CNB

Price Range
$0.2905 - $0.2489

Stock Levels
13000 In stock
Attributes
  • Overall Height
    0.620 in
  • Distance Across Flats
    0.565 in
  • Thread Size
    3/8-16
  • Color
    Black
  • 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; Natural; Nylon 6/6

0562511CN

Price Range
$0.7848 - $0.3448

Stock Levels
8750 In stock
Attributes
  • Overall Height
    0.970 in
  • Distance Across Flats
    0.935 in
  • Thread Size
    5/8-11
  • Color
    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 6/6

0525020LCN

Price Range
$0.0607 - $0.0443

Stock Levels
21500 In stock
Attributes
  • Overall Height
    0.475 in
  • Distance Across Flats
    0.425 in
  • Thread Size
    1/4-20
  • 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; Natural; Nylon 6/6

0500632LCN

Price Range
$0.0803 - $0.0585

Stock Levels
16500 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 #8-32; Distance Across Flats 8.4 mm | 0.330 in; Overall Height 9.5 mm | 0.375 in; Natural; Nylon 6/6

0500832LCN

Price Range
$0.0829 - $0.0604

Stock Levels
21000 In stock
Attributes
  • Overall Height
    0.375 in
  • Distance Across Flats
    0.330 in
  • Thread Size
    #8-32
  • 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 6/6

0537516CN

Price Range
$0.264 - $0.2264

Stock Levels
38000 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 5/16-18; Distance Across Flats 12.7 mm | 0.500 in; Overall Height 13.5 mm | 0.530 in; Natural; Nylon 6/6

0531218LCN

Price Range
$0.2037 - $0.1484

Stock Levels
12000 In stock
Attributes
  • Overall Height
    0.530 in
  • Distance Across Flats
    0.500 in
  • Thread Size
    5/16-18
  • 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 6/6

0501032LCN

Price Range
$0.0854 - $0.0623

Stock Levels
2000 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 M5 x 0.8; Distance Across Flats 8.0 mm | 0.315 in; Overall Height 10.0 mm | 0.394 in; Natural; Nylon 6/6

05M050080LCN

Price Range
$0.1119 - $0.0958

Stock Levels
9000 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 x 1.0; Distance Across Flats 10.0 mm | 0.394 in; Overall Height 12.0 mm | 0.472 in; Natural; Nylon 6/6

05M060100LCN

Price Range
$0.1224 - $0.105

Stock Levels
2000 In stock
Attributes
  • Overall Height
    0.472 in
  • Distance Across Flats
    0.394 in
  • Thread Size
    M6 x 1.0
  • 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 6/6

0500440CN

Price Range
$0.0867 - $0.0744

Stock Levels
Request the lead time here
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 #8-32; Distance Across Flats 8.4 mm | 0.330 in; Overall Height 9.5 mm | 0.375 in; Black; Nylon 6/6

0500832CNB

Price Range
$0.1017 - $0.0872

Stock Levels
11000 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 #10-24; Distance Across Flats 9.3 mm | 0.365 in; Overall Height 10.2 mm | 0.400 in; Black; Nylon 6/6

0501024LCNB

Price Range
$0.2171 - $0.0954

Stock Levels
1000 In stock
Attributes
  • Overall Height
    0.400 in
  • Distance Across Flats
    0.365 in
  • Thread Size
    #10-24
  • 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 6/6

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
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 6/6

0525020LCNB

Price Range
$0.0668 - $0.0487

Stock Levels
3000 In stock
Attributes
  • Overall Height
    0.475 in
  • Distance Across Flats
    0.425 in
  • Thread Size
    1/4-20
  • Color
    Black
  • Full Material
    Nylon 6/6