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Jam Nuts

Jam Nuts

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Jam Nuts, also know as Thin Hex Nuts, are a low-profile type of nut. Typically they are half as tall as a standard nut. It is commonly used as a type of locknut, where it is 'jammed' up against a standard nut to lock the two in place or where a standard nut will not fit. These light-weight nylon versions offer a vibration-, chemical- and corrosion-resistant option to metal variants.

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Product SKUs information
Item Code Price range Availability Thread Size Distance Across Flats Outside Diameter Buy
$0.4444 - $1.0119 5000 In stock
7/8-14
1.25 in
1.250 in
$0.1215 - $0.1418 3000 In stock
3/8-24
0.500 in
0.500 in
$0.5736 - $1.306 4000 In stock
3/4-16
1.12 in
1.120 in
$0.1746 - $0.2037 2000 In stock
1/2-13
0.687 in
0.687 in
$0.0912 - $0.1065 2000 In stock
5/16-24
0.500 in
0.500 in
$0.8544 - $1.9454 In production
1/2-14 NPT
1.25 in
1.250 in
$0.1824 - $0.2128 In production
1/2-28
0.660 in
0.660 in
$1.0482 - $2.3867 In production
3/4-14 NPT
1.48 in
1.480 in
0425020HJN $0.091 - $0.1001 38000 In stock
1/4-20
0.437 in
0.437 in
$0.8216 - $1.8704 In production
3/8-18 NPT
1.00 in
1.000 in
$0.1481 - $0.1727 4000 In stock
7/16-20
0.687 in
0.687 in
0450020HJN $0.1824 - $0.2128 In production
1/2-20
0.687 in
0.687 in
$0.1823 - $0.2126 In production
9/16-24
0.750 in
0.750 in
$0.5408 - $0.6309 1000 In stock
3/4-27
1.00 in
1.000 in
$0.3209 - $0.7307 In production
1/4-18 NPT
0.74 in
0.740 in
$0.1271 - $0.1482 15000 In stock
3/8-32
0.5 in
0.5 in
$1.4477 - $3.2966 In production
1-1/4-11-1/2 NPT
2.125 in
2.344 in
$0.6668 - $1.5181 2500 In stock
1-8
1.48 in
1.480 in
$0.3073 - $0.6995 2500 In stock
5/8-11
0.937 in
0.937 in
0412527PJN $0.1158 - $0.1351 16000 In stock
1/8-27 NPT
0.560 in
0.560 in
    • of 2
Natural Nylon Hexagonal Jam Nut - Thread Size 7/8-14; Distance Across Flats 31.8 mm | 1.25 in; Overall Height 8.6 mm | 0.340 in

0487514HJN

Price Range
$1.0119 - $0.4444

Stock Levels
5000 In stock
Attributes
  • Distance Across Flats
    1.25 in
  • Overall Height
    0.340 in
  • Thread Size
    7/8-14
  • Outside Diameter
    1.250 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 3/8-24; Distance Across Flats 12.7 mm | 0.500 in; Overall Height 3.2 mm | 0.125 in

0437524HJN

Price Range
$0.1418 - $0.1215

Stock Levels
3000 In stock
Attributes
  • Distance Across Flats
    0.500 in
  • Overall Height
    0.125 in
  • Thread Size
    3/8-24
  • Outside Diameter
    0.500 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 3/4-16; Distance Across Flats 28.4 mm | 1.12 in; Overall Height 6.4 mm | 0.250 in

0475016HJN

Price Range
$1.306 - $0.5736

Stock Levels
4000 In stock
Attributes
  • Distance Across Flats
    1.12 in
  • Overall Height
    0.250 in
  • Thread Size
    3/4-16
  • Outside Diameter
    1.120 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 1/2-13; Distance Across Flats 17.4 mm | 0.687 in; Overall Height 5.6 mm | 0.220 in

0450013HJN

Price Range
$0.2037 - $0.1746

Stock Levels
2000 In stock
Attributes
  • Distance Across Flats
    0.687 in
  • Overall Height
    0.220 in
  • Thread Size
    1/2-13
  • Outside Diameter
    0.687 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 5/16-24; Distance Across Flats 12.7 mm | 0.500 in; Overall Height 4.8 mm | 0.190 in

0431224HJN

Price Range
$0.1065 - $0.0912

Stock Levels
2000 In stock
Attributes
  • Distance Across Flats
    0.500 in
  • Overall Height
    0.190 in
  • Thread Size
    5/16-24
  • Outside Diameter
    0.500 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 1/2-14 NPT; Distance Across Flats 31.8 mm | 1.25 in; Overall Height 8.6 mm | 0.340 in

0450014PJN

Price Range
$1.9454 - $0.8544

Stock Levels
In production
Attributes
  • Distance Across Flats
    1.25 in
  • Overall Height
    0.340 in
  • Thread Size
    1/2-14 NPT
  • Outside Diameter
    1.250 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 1/2-28; Distance Across Flats 16.8 mm | 0.660 in; Overall Height 3.2 mm | 0.125 in

0450028HJN

Price Range
$0.2128 - $0.1824

Stock Levels
In production
Attributes
  • Distance Across Flats
    0.660 in
  • Overall Height
    0.125 in
  • Thread Size
    1/2-28
  • Outside Diameter
    0.660 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 3/4-14 NPT; Distance Across Flats 37.6 mm | 1.48 in; Overall Height 10.4 mm | 0.410 in

0475014PJN

Price Range
$2.3867 - $1.0482

Stock Levels
In production
Attributes
  • Distance Across Flats
    1.48 in
  • Overall Height
    0.410 in
  • Thread Size
    3/4-14 NPT
  • Outside Diameter
    1.480 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 1/4-20; Distance Across Flats 11.1 mm | 0.437 in; Overall Height 4 mm | 0.158 in

0425020HJN

Price Range
$0.1001 - $0.091

Stock Levels
38000 In stock
Attributes
  • Distance Across Flats
    0.437 in
  • Overall Height
    0.158 in
  • Thread Size
    1/4-20
  • Outside Diameter
    0.437 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 3/8-18 NPT; Distance Across Flats 25.4 mm | 1.00 in; Overall Height 7.1 mm | 0.280 in

0437518PJN

Price Range
$1.8704 - $0.8216

Stock Levels
In production
Attributes
  • Distance Across Flats
    1.00 in
  • Overall Height
    0.280 in
  • Thread Size
    3/8-18 NPT
  • Outside Diameter
    1.000 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 7/16-20; Distance Across Flats 17.4 mm | 0.687 in; Overall Height 6.4 mm | 0.250 in

0443720HJN

Price Range
$0.1727 - $0.1481

Stock Levels
4000 In stock
Attributes
  • Distance Across Flats
    0.687 in
  • Overall Height
    0.250 in
  • Thread Size
    7/16-20
  • Outside Diameter
    0.687 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 1/2-20; Distance Across Flats 17.4 mm | 0.687 in; Overall Height 5.6 mm | 0.220 in

0450020HJN

Price Range
$0.2128 - $0.1824

Stock Levels
In production
Attributes
  • Distance Across Flats
    0.687 in
  • Overall Height
    0.220 in
  • Thread Size
    1/2-20
  • Outside Diameter
    0.687 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 9/16-24; Distance Across Flats 19.1 mm | 0.750 in; Overall Height 6.4 mm | 0.250 in

0456224HJN

Price Range
$0.2126 - $0.1823

Stock Levels
In production
Attributes
  • Distance Across Flats
    0.750 in
  • Overall Height
    0.250 in
  • Thread Size
    9/16-24
  • Outside Diameter
    0.750 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 3/4-27; Distance Across Flats 25.4 mm | 1.00 in; Overall Height 3.2 mm | 0.125 in

0475027HJN

Price Range
$0.6309 - $0.5408

Stock Levels
1000 In stock
Attributes
  • Distance Across Flats
    1.00 in
  • Overall Height
    0.125 in
  • Thread Size
    3/4-27
  • Outside Diameter
    1.000 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 1/4-18 NPT; Distance Across Flats 18.8 mm | 0.74 in; Overall Height 4.7 mm | 0.187 in

0425018PJN

Price Range
$0.7307 - $0.3209

Stock Levels
In production
Attributes
  • Distance Across Flats
    0.74 in
  • Overall Height
    0.187 in
  • Thread Size
    1/4-18 NPT
  • Outside Diameter
    0.740 in
  • Material
    Nylon
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Natural PA Hexagonal Standard Hex Nut - Thread Size 3/8-32; Distance Across Flats 12.7 mm | 0.5 in; Overall Height 3.2 mm | 0.126 in

0437532HJN

Price Range
$0.1482 - $0.1271

Stock Levels
15000 In stock
Attributes
  • Distance Across Flats
    0.5 in
  • Overall Height
    0.126 in
  • Thread Size
    3/8-32
  • Outside Diameter
    0.5 in
  • Material
    PA
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Natural Nylon Hexagonal Jam Nut - Thread Size 1-1/4-11-1/2 NPT; Distance Across Flats 54 mm | 2.125 in; Overall Height 9.5 mm | 0.375 in

0412511PJN

Price Range
$3.2966 - $1.4477

Stock Levels
In production
Attributes
  • Distance Across Flats
    2.125 in
  • Overall Height
    0.375 in
  • Thread Size
    1-1/4-11-1/2 NPT
  • Outside Diameter
    2.344 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 1-8; Distance Across Flats 37.6 mm | 1.48 in; Overall Height 10.4 mm | 0.410 in

0410008HJN

Price Range
$1.5181 - $0.6668

Stock Levels
2500 In stock
Attributes
  • Distance Across Flats
    1.48 in
  • Overall Height
    0.410 in
  • Thread Size
    1-8
  • Outside Diameter
    1.480 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 5/8-11; Distance Across Flats 23.8 mm | 0.937 in; Overall Height 9.5 mm | 0.375 in

0462511HJN

Price Range
$0.6995 - $0.3073

Stock Levels
2500 In stock
Attributes
  • Distance Across Flats
    0.937 in
  • Overall Height
    0.375 in
  • Thread Size
    5/8-11
  • Outside Diameter
    0.937 in
  • Material
    Nylon
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Natural Nylon Hexagonal Jam Nut - Thread Size 1/8-27 NPT; Distance Across Flats 14.2 mm | 0.560 in; Overall Height 2.8 mm | 0.11 in

0412527PJN

Price Range
$0.1351 - $0.1158

Stock Levels
16000 In stock
Attributes
  • Distance Across Flats
    0.560 in
  • Overall Height
    0.11 in
  • Thread Size
    1/8-27 NPT
  • Outside Diameter
    0.560 in
  • Material
    Nylon
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