Cap nut

Cap nuts, Stainless steel 316

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.

Cap 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

21137 #10-24
$1.47
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$1.47 each
$59.20 / 50
$514.00 / 500

$59.20
Add
50
$514.00
500
21144 #10-32
$1.47
Add

$1.47 each
$59.20 / 50
$514.00 / 500

$59.20
Add
50
$514.00
500
21138 1/4"-20
$1.56
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$1.56 each
$67.81 / 50
$598.00 / 500

$67.81
Add
50
$598.00
500
21139 5/16"-18
$1.81
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$1.81 each
$80.07 / 50
$715.00 / 500

$80.07
Add
50
$715.00
500
21140 3/8"-16
$2.24
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$2.24 each
$93.21 / 50
$747.00 / 500

$93.21
Add
50
$747.00
500
21141 4 1/2"-13
$5.25
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$5.25 each
$47.78 / 10
$440.00 / 100

$47.78
Add
10
$440.00
100
21142 4 5/8"-11
$9.40
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$9.40 each
$78.06 / 10
$577.00 / 100

$78.06
Add
10
$577.00
100
21143 4 3/4"-10
$11.89
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$11.89 each
$98.73 / 10
$730.00 / 100

$98.73
Add
10
$730.00
100

Fine thread

21144 #10-32
$1.47
Add

$1.47 each
$59.20 / 50
$514.00 / 500

$59.20
Add
50
$514.00
500

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

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

See also

Metric cap nut

Metric cap nuts

A nut with a finished top that covers the end of the bolt. Bolts must be in the proper length.