Coupling nut

Coupling nuts, Stainless steel 18-8

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.

Coupling nut diameter and length

Click on a product # for additional info

Prod.
#
Size Buy Each Buy Bag Bag
Qty
Buy Bulk Bulk
Qty

Coarse (standard) thread

12121 #8-32 x 1/2"
$1.29
Add

$1.29 each
$20.50 / 25
$195.00 / 250

$20.50
Add
25
$195.00
250
12122 #10-24 x 3/4"
$1.37
Add

$1.37 each
$21.10 / 25
$200.00 / 250

$21.10
Add
25
$200.00
250
12124 4 #12-24 x 3/4"
$14.92
Add

$14.92 each
$131.59 / 10
$1,250.00 / 100

$131.59
Add
10
$1,250.00
100
12125 1/4"-20 x 7/8"
$0.86
Add

$0.86 each
$14.13 / 25
$134.00 / 250

$14.13
Add
25
$134.00
250
12126 5/16"-18 x 1"
$1.04
Add

$1.04 each
$18.62 / 25
$176.00 / 250

$18.62
Add
25
$176.00
250
12127 3/8"-16 x 1-1/8"
$1.46
Add

$1.46 each
$25.30 / 25
$236.00 / 250

$25.30
Add
25
$236.00
250
12128 4 7/16"-14 x 1-1/4"
$3.35
Add

$3.35 each
$28.99 / 10
$275.00 / 100

$28.99
Add
10
$275.00
100
12129 1/2"-13 x 1-1/4"
$2.35
Add

$2.35 each
$37.25 / 25
$354.00 / 250

$37.25
Add
25
$354.00
250
12130 4 1/2"-13 x 1-3/4"
$3.40
Add

$3.40 each
$68.74 / 25
$653.00 / 250

$68.74
Add
25
$653.00
250
12131 5/8"-11 x 1-3/4"
$7.80
Add

$7.80 each
$53.15 / 10
$505.00 / 100

$53.15
Add
10
$505.00
100
12132 4 5/8"-11 x 2-1/2"
$10.50
Add

$10.50 each
$72.48 / 10
$689.00 / 100

$72.48
Add
10
$689.00
100
12133 3/4"-10 x 2"
$11.50
Add

$11.50 each
$77.38 / 10
$735.00 / 100

$77.38
Add
10
$735.00
100
12134 3/4"-10 x 2-1/4"
$16.01
Add

$16.01 each
$57.26 / 5
$272.00 / 25

$57.26
Add
5
$272.00
25
12135 7/8"-9 x 2-1/2"
$25.19
Add

$25.19 each
$91.84 / 5
$436.00 / 25

$91.84
Add
5
$436.00
25
12136 1"-8 x 2-1/2"
$30.36
Add

$30.36 each
$103.22 / 5
$488.00 / 25

$103.22
Add
5
$488.00
25
12137 1-1/8"-7 x 3"
$45.63
Add

$45.63 each
$153.65 / 5
$730.00 / 25

$153.65
Add
5
$730.00
25
12138 1-1/4"-7 x 3"
$57.25
Add

$57.25 each
$192.78 / 5
$916.00 / 25

$192.78
Add
5
$916.00
25
12139 1-1/2"-6 x 3-1/2"
$85.59
Add

$85.59 each
$288.16 / 5
$1,369.00 / 25

$288.16
Add
5
$1,369.00
25

Fine thread

12123 #10-32 x 3/4"
$1.39
Add

$1.39 each
$21.75 / 25
$206.00 / 250

$21.75
Add
25
$206.00
250
12163 1/4"-28 x 7/8"
$1.46
Add

$1.46 each
$23.35 / 25
$222.00 / 250

$23.35
Add
25
$222.00
250
12164 5/16"-24 x 1"
$2.18
Add

$2.18 each
$35.02 / 25
$333.00 / 250

$35.02
Add
25
$333.00
250
12165 3/8"-24 x 1-1/8"
$2.70
Add

$2.70 each
$45.42 / 25
$431.00 / 250

$45.42
Add
25
$431.00
250
12166 4 7/16"-20 x 1-1/4"
$8.50
Add

$8.50 each
$57.21 / 10
$544.00 / 100

$57.21
Add
10
$544.00
100
12167 1/2"-20 x 1-1/4"
$4.92
Add

$4.92 each
$79.75 / 25
$758.00 / 250

$79.75
Add
25
$758.00
250
12168 4 5/8"-18 x 1-3/4"
$16.79
Add

$16.79 each
$113.07 / 10
$1,074.00 / 100

$113.07
Add
10
$1,074.00
100

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

See also

Metric coupling nut

Metric coupling nuts

A long nut used to connect pieces of threaded rod or other male threaded fasteners.