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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
$0.1419 - $0.1947 3000 In stock
5/16-24
0.500 in
Natural
Locking
0.530 in
$0.1156 - $0.1586 500 In stock
3/8-32
0.565 in
Natural
Locking
0.620 in
05M060100CNB $0.1051 - $0.1225 5000 In stock
M6
0.394 in
Black
Locking
0.472 in
$0.3919 - $0.5375 250 In stock
M16
0.933 in
Natural
Locking
0.976 in
0525020CNB $0.0487 - $0.0668 8000 In stock
1/4" x 20
0.425 in
Black
Locking
0.475 in
$0.0951 - $0.1304 12500 In stock
5/16-18
0.500 in
Black
Locking
0.530 in
$0.1633 - $0.224 500 In stock
5/16-18
0.500 in
Black
0.530 in
$0.1562 - $0.2142 36500 In stock
5/16-24
0.500 in
Black
Locking
0.530 in
$0.2489 - $0.2905 16000 In stock
3/8-16
0.565 in
Black
Locking
0.620 in
$0.0924 - $0.2106 35000 In stock
8-32
0.330 in
Black
0.375 in
$0.2727 - $0.374 500 In stock
1/2-20
0.750 in
Black
Locking
0.810 in
$0.2728 - $0.3742 500 In stock
M12
0.744 in
Black
Locking
0.807 in
0501024CN $0.0548 - $0.064 14000 In stock
#10-24
0.365 in
Natural
Locking
0.400 in
$0.1154 - $0.1346 6000 In stock
M6
0.394 in
Black
0.472 in
$0.0897 - $0.2041 Request the lead time here
#6-32
0.305 in
Black
0.345 in
$0.1742 - $0.239 1000 In stock
M10 x 1.5
0.669 in
Natural
Locking
0.709 in
$0.2478 - $0.3399 500 In stock
1/2-20
0.750 in
Natural
Locking
0.810 in
$0.1055 - $0.123 4000 In stock
M5
0.315 in
Black
0.394 in
0501032CN $0.0553 - $0.064 11000 In stock
#10-32
0.365 in
Natural
Locking
0.400 in
$0.1475 - $0.1722 2000 In stock
M8
0.512 in
Natural
Locking
0.591 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; Natural; Nylon 6/6

0531224CN

Price Range
$0.1947 - $0.1419

Stock Levels
3000 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 3/8-32; Distance Across Flats 14.4 mm | 0.565 in; Overall Height 15.7 mm | 0.620 in; Natural; Nylon 6/6

0537532CN

Price Range
$0.1586 - $0.1156

Stock Levels
500 In stock
Attributes
  • Overall Height
    0.620 in
  • Distance Across Flats
    0.565 in
  • Thread Size
    3/8-32
  • 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; Black; Nylon 6/6

05M060100CNB

Price Range
$0.1225 - $0.1051

Stock Levels
5000 In stock
Attributes
  • Overall Height
    0.472 in
  • Distance Across Flats
    0.394 in
  • Thread Size
    M6
  • Color
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size M16 x 2.0; Distance Across Flats 23.7 mm | 0.933 in; Overall Height 24.8 mm | 0.976 in; Natural; Nylon 6/6

05M160200CN

Price Range
$0.5375 - $0.3919

Stock Levels
250 In stock
Attributes
  • Overall Height
    0.976 in
  • Distance Across Flats
    0.933 in
  • Thread Size
    M16
  • 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

0525020CNB

Price Range
$0.0668 - $0.0487

Stock Levels
8000 In stock
Attributes
  • Overall Height
    0.475 in
  • Distance Across Flats
    0.425 in
  • Thread Size
    1/4" x 20
  • 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

0531218CNB

Price Range
$0.1304 - $0.0951

Stock Levels
12500 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 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 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
16000 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 #8-32; Distance Across Flats 8.4 mm | 0.330 in; Overall Height 9.5 mm | 0.375 in; Black; Nylon 6/6

0500832LCNB

Price Range
$0.2106 - $0.0924

Stock Levels
35000 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 1/2-20; Distance Across Flats 19.1 mm | 0.750 in; Overall Height 20.6 mm | 0.810 in; Black; Nylon 6/6

0550020CNB

Price Range
$0.374 - $0.2727

Stock Levels
500 In stock
Attributes
  • Overall Height
    0.810 in
  • Distance Across Flats
    0.750 in
  • Thread Size
    1/2-20
  • Color
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size M12 x 1.75; Distance Across Flats 18.9 mm | 0.744 in; Overall Height 20.5 mm | 0.807 in; Black; Nylon 6/6

05M120175CNB

Price Range
$0.3742 - $0.2728

Stock Levels
500 In stock
Attributes
  • Overall Height
    0.807 in
  • Distance Across Flats
    0.744 in
  • Thread Size
    M12
  • 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; Natural; Nylon 6/6

0501024CN

Price Range
$0.064 - $0.0548

Stock Levels
14000 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 M6 x 1.0; Distance Across Flats 10.0 mm | 0.394 in; Overall Height 12.0 mm | 0.472 in; Black; Nylon 6/6

05M060100LCNB

Price Range
$0.1346 - $0.1154

Stock Levels
6000 In stock
Attributes
  • Overall Height
    0.472 in
  • Distance Across Flats
    0.394 in
  • Thread Size
    M6
  • 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; Black; Nylon 6/6

0500632LCNB

Price Range
$0.2041 - $0.0897

Stock Levels
Request the lead time here
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 M10 x 1.5; Distance Across Flats 17.0 mm | 0.669 in; Overall Height 18.0 mm | 0.709 in; Natural; Nylon 6/6

05M100150CN

Price Range
$0.239 - $0.1742

Stock Levels
1000 In stock
Attributes
  • Overall Height
    0.709 in
  • Distance Across Flats
    0.669 in
  • Thread Size
    M10 x 1.5
  • Color
    Natural
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size 1/2-20; Distance Across Flats 19.1 mm | 0.750 in; Overall Height 20.6 mm | 0.810 in; Natural; Nylon 6/6

0550020CN

Price Range
$0.3399 - $0.2478

Stock Levels
500 In stock
Attributes
  • Overall Height
    0.810 in
  • Distance Across Flats
    0.750 in
  • Thread Size
    1/2-20
  • 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; Black; Nylon 6/6

05M050080LCNB

Price Range
$0.123 - $0.1055

Stock Levels
4000 In stock
Attributes
  • Overall Height
    0.394 in
  • Distance Across Flats
    0.315 in
  • Thread Size
    M5
  • 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 6/6

0501032CN

Price Range
$0.064 - $0.0553

Stock Levels
11000 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 M8; Distance Across Flats 13.0 mm | 0.512 in; Overall Height 15.0 mm | 0.591 in; Natural; Nylon

05M080125CN

Price Range
$0.1722 - $0.1475

Stock Levels
2000 In stock
Attributes
  • Overall Height
    0.591 in
  • Distance Across Flats
    0.512 in
  • Thread Size
    M8
  • Color
    Natural
  • Full Material
    Nylon 6/6