Castle nut

Castle nuts, Zinc plated steel

Nut size (A.K.A. diameter) is the size bolt that the nut is used with. The same is true of the thread count. Thus a 1/4"-20 nut fits a 1/4"-20 bolt.

Castle nut diameter

Click on a product # for additional info

Prod.
#
Diameter and Thread count Buy Each Buy Bag Bag
Qty
Buy Bulk Bulk
Qty

Fine thread

14392 1/4"-28
$1.64
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$1.64 each
$115.42 / 100
$1,039.00 / 1000

$115.42
Add
100
$1,039.00
1000
14393 5/16"-24
$1.99
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$1.99 each
$140.11 / 100
$1,261.00 / 1000

$140.11
Add
100
$1,261.00
1000
14394 3/8"-24
$2.05
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$2.05 each
$144.36 / 100
$1,299.00 / 1000

$144.36
Add
100
$1,299.00
1000
14396 1/2"-20
$2.42
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$2.42 each
$170.85 / 100
$1,538.00 / 1000

$170.85
Add
100
$1,538.00
1000
14397 4 9/16"-18
$3.00
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$3.00 each
$122.00 / 50
$1,098.00 / 500

$122.00
Add
50
$1,098.00
500
14398 5/8"-18
$3.47
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$3.47 each
$138.80 / 50
$1,249.00 / 500

$138.80
Add
50
$1,249.00
500
14400 7/8"-14
$4.99
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$4.99 each
$114.77 / 25
$1,033.00 / 250

$114.77
Add
25
$1,033.00
250
14401 1"-14
$6.18
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$6.18 each
$142.14 / 25
$1,279.00 / 250

$142.14
Add
25
$1,279.00
250

4 This item is a semi-standard size and is therefore more expensive.

^ NOTE: While 12tpi is the fine thread (UNF) standard, 14tpi is far more common in actual use.