K-Lock nut

K-Lock 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.

K-lock lock 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

12018 #4-40
$0.05
Add

$0.05 each
$2.92 / 100
$26.80 / 1000

$2.92
Add
100
$26.80
1000
12019 #6-32
$0.06
Add

$0.06 each
$3.77 / 100
$35.10 / 1000

$3.77
Add
100
$35.10
1000
12020 #8-32
$0.07
Add

$0.07 each
$4.65 / 100
$43.20 / 1000

$4.65
Add
100
$43.20
1000
12021 #10-24
$0.08
Add

$0.08 each
$5.26 / 100
$48.90 / 1000

$5.26
Add
100
$48.90
1000
12022 #10-32
$0.08
Add

$0.08 each
$5.11 / 100
$47.20 / 1000

$5.11
Add
100
$47.20
1000
12023 1/4"-20
$0.15
Add

$0.15 each
$9.75 / 100
$90.00 / 1000

$9.75
Add
100
$90.00
1000
12024 5/16"-18
$0.25
Add

$0.25 each
$18.50 / 100
$171.00 / 1000

$18.50
Add
100
$171.00
1000
12025 3/8"-16
$0.35
Add

$0.35 each
$26.32 / 100
$243.00 / 1000

$26.32
Add
100
$243.00
1000

Fine thread

12022 #10-32
$0.08
Add

$0.08 each
$5.11 / 100
$47.20 / 1000

$5.11
Add
100
$47.20
1000
12026 1/4"-28
$0.21
Add

$0.21 each
$15.70 / 100
$147.00 / 1000

$15.70
Add
100
$147.00
1000
12027 5/16"-24
$0.46
Add

$0.46 each
$33.78 / 100
$312.00 / 1000

$33.78
Add
100
$312.00
1000
12028 3/8"-24
$0.65
Add

$0.65 each
$48.31 / 100
$449.00 / 1000

$48.31
Add
100
$449.00
1000

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

See also

Metric k-lock nut

Metric K-Lock nuts

A nut with an attached free-spinning external tooth lock washer.