Castle nut

Castle nuts, Brass

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

Coarse (standard) thread

14418 #10-24
$2.53
Add

$2.53 each
$50.31 / 25
$463.00 / 250

$50.31
Add
25
$463.00
250
14419 #10-32
$2.53
Add

$2.53 each
$50.31 / 25
$463.00 / 250

$50.31
Add
25
$463.00
250
14420 1/4"-20
$2.63
Add

$2.63 each
$52.00 / 25
$478.00 / 250

$52.00
Add
25
$478.00
250
14421 5/16"-18
$3.21
Add

$3.21 each
$63.55 / 25
$585.00 / 250

$63.55
Add
25
$585.00
250
14422 3/8"-16
$3.78
Add

$3.78 each
$75.11 / 25
$691.00 / 250

$75.11
Add
25
$691.00
250
14423 1/2"-13
$6.16
Add

$6.16 each
$51.36 / 10
$472.00 / 100

$51.36
Add
10
$472.00
100
14424 5/8"-11
$7.00
Add

$7.00 each
$58.39 / 10
$537.00 / 100

$58.39
Add
10
$537.00
100
14425 3/4"-10
$9.89
Add

$9.89 each
$82.46 / 10
$759.00 / 100

$82.46
Add
10
$759.00
100

Fine thread

14419 #10-32
$2.53
Add

$2.53 each
$50.31 / 25
$463.00 / 250

$50.31
Add
25
$463.00
250

* 10-32 is a fine thread, but it is listed under coarse thread because it is very common.