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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
$0.0603 - $0.0702 43000 In stock
#10-24
0.365 in
Black
Domed
0.400 in
0525020CNB $0.0487 - $0.0668 2000 In stock
1/4-20
0.425 in
Black
Domed
0.475 in
0531218CN $0.0865 - $0.1186 11000 In stock
5/16-18
0.500 in
Natural
Domed
0.530 in
$0.1771 - $0.4029 2000 In stock
3/8-32
0.565 in
Black
Domed
0.620 in
$0.0845 - $0.0986 2000 In stock
M4 x 0.7
0.276 in
Natural
Domed
0.315 in
$0.0959 - $0.1119 8000 In stock
M5 x 0.8
0.315 in
Black
Domed
0.394 in
$0.5994 - $1.3651 1000 In stock
M16 x 2.0
0.933 in
Black
Domed
0.976 in
$0.0897 - $0.2041 Request the lead time here
#6-32
0.305 in
Black
0.345 in
0501024CN $0.0548 - $0.064 29000 In stock
#10-24
0.365 in
Natural
Domed
0.400 in
$0.0845 - $0.0985 51000 In stock
#6-32
0.305 in
Black
Domed
0.345 in
$0.0924 - $0.2106 35000 In stock
#8-32
0.330 in
Black
0.375 in
0501032CN $0.0553 - $0.064 33000 In stock
#10-32
0.365 in
Natural
Domed
0.400 in
$0.2657 - $0.6051 1000 In stock
1/4-18
0.750 in
Black
Domed
0.810 in
$0.066 - $0.0906 3000 In stock
1/4-28
0.425 in
Natural
Domed
0.475 in
$0.1669 - $0.1945 37000 In stock
3/8-24
0.565 in
Black
Domed
0.620 in
$0.2728 - $0.3742 500 In stock
M12 x 1.75
0.744 in
Black
Domed
0.807 in
$0.6718 - $0.7837 Request the lead time here
M20 x 2.5
1.051 in
Black
Domed
1.146 in
$0.0608 - $0.0702 1000 In stock
#10-32
0.365 in
Black
Domed
0.400 in
$0.0443 - $0.0607 25000 In stock
1/4-20
0.425 in
Natural
Domed
0.475 in
$0.1012 - $0.2303 35500 In stock
1/4-28
0.425 in
Black
Domed
0.475 in
  • of 4
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

0501024CNB

Price Range
$0.0702 - $0.0603

Stock Levels
43000 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 1/4-20; 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
2000 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
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

0531218CN

Price Range
$0.1186 - $0.0865

Stock Levels
11000 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 3/8-32; Distance Across Flats 14.4 mm | 0.565 in; Overall Height 15.7 mm | 0.620 in; Black; Nylon 6/6

0537532CNB

Price Range
$0.4029 - $0.1771

Stock Levels
2000 In stock
Attributes
  • Overall Height
    0.620 in
  • Distance Across Flats
    0.565 in
  • Thread Size
    3/8-32
  • Color
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size M4 x 0.7; Distance Across Flats 7.0 mm | 0.276 in; Overall Height 8.0 mm | 0.315 in; Natural; Nylon 6/6

05M040070CN

Price Range
$0.0986 - $0.0845

Stock Levels
2000 In stock
Attributes
  • Overall Height
    0.315 in
  • Distance Across Flats
    0.276 in
  • Thread Size
    M4 x 0.7
  • 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

05M050080CNB

Price Range
$0.1119 - $0.0959

Stock Levels
8000 In stock
Attributes
  • Overall Height
    0.394 in
  • Distance Across Flats
    0.315 in
  • Thread Size
    M5 x 0.8
  • 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; Black; Nylon 6/6

05M160200CNB

Price Range
$1.3651 - $0.5994

Stock Levels
1000 In stock
Attributes
  • Overall Height
    0.976 in
  • Distance Across Flats
    0.933 in
  • Thread Size
    M16 x 2.0
  • 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 #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
29000 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 #6-32; Distance Across Flats 7.7 mm | 0.305 in; Overall Height 8.8 mm | 0.345 in; Black; Nylon 6/6

0500632CNB

Price Range
$0.0985 - $0.0845

Stock Levels
51000 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 #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 #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
33000 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 1/4-18; Distance Across Flats 10.8 mm | 0.425 in; Overall Height 12.1 mm | 0.475 in; Black; Nylon 6/6

0525018CNB

Price Range
$0.6051 - $0.2657

Stock Levels
1000 In stock
Attributes
  • Overall Height
    0.810 in
  • Distance Across Flats
    0.750 in
  • Thread Size
    1/4-18
  • Color
    Black
  • 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 6/6

0525028CN

Price Range
$0.0906 - $0.066

Stock Levels
3000 In stock
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 3/8-24; Distance Across Flats 14.4 mm | 0.565 in; Overall Height 15.7 mm | 0.620 in; Black; Nylon 6/6

0537524CNB

Price Range
$0.1945 - $0.1669

Stock Levels
37000 In stock
Attributes
  • Overall Height
    0.620 in
  • Distance Across Flats
    0.565 in
  • Thread Size
    3/8-24
  • 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 x 1.75
  • Color
    Black
  • Full Material
    Nylon 6/6
Hexagonal Cap Nut - Thread Size M20 x 2.5; Distance Across Flats 26.7 mm | 1.051 in; Overall Height 29.1 mm | 1.146 in; Black; Nylon 6/6

05M200250CNB

Price Range
$0.7837 - $0.6718

Stock Levels
Request the lead time here
Attributes
  • Overall Height
    1.146 in
  • Distance Across Flats
    1.051 in
  • Thread Size
    M20 x 2.5
  • 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; Black; Nylon 6/6

0501032CNB

Price Range
$0.0702 - $0.0608

Stock Levels
1000 In stock
Attributes
  • Overall Height
    0.400 in
  • Distance Across Flats
    0.365 in
  • Thread Size
    #10-32
  • Color
    Black
  • 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

0525020CN

Price Range
$0.0607 - $0.0443

Stock Levels
25000 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 1/4-28; Distance Across Flats 10.8 mm | 0.425 in; Overall Height 12.1 mm | 0.475 in; Black; Nylon 6/6

0525028CNB

Price Range
$0.2303 - $0.1012

Stock Levels
35500 In stock
Attributes
  • Overall Height
    0.475 in
  • Distance Across Flats
    0.425 in
  • Thread Size
    1/4-28
  • Color
    Black
  • Full Material
    Nylon 6/6