K-Lock nuts, Stainless steel 18-8

K-Lock nut

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 Each price Bag price Bulk price Price Buy

Coarse (standard) thread

12018 #4-40 $0.05 / ea $2.92 / 100 $26.80 / 1000 $0.05 / ea $2.92 / 100 $26.80 / 1000
12019 #6-32 $0.06 / ea $3.77 / 100 $35.10 / 1000 $0.06 / ea $3.77 / 100 $35.10 / 1000
12020 #8-32 $0.07 / ea $4.65 / 100 $43.20 / 1000 $0.07 / ea $4.65 / 100 $43.20 / 1000
12021 #10-24 $0.08 / ea $5.26 / 100 $48.90 / 1000 $0.08 / ea $5.26 / 100 $48.90 / 1000
12022 * #10-32 $0.08 / ea $5.11 / 100 $47.20 / 1000 $0.08 / ea $5.11 / 100 $47.20 / 1000
12023 1/4"-20 $0.15 / ea $9.75 / 100 $90.00 / 1000 $0.15 / ea $9.75 / 100 $90.00 / 1000
12024 5/16"-18 $0.25 / ea $18.50 / 100 $171.00 / 1000 $0.25 / ea $18.50 / 100 $171.00 / 1000
12025 3/8"-16 $0.35 / ea $26.32 / 100 $243.00 / 1000 $0.35 / ea $26.32 / 100 $243.00 / 1000

Fine thread

12022 #10-32 $0.08 / ea $5.11 / 100 $47.20 / 1000 $0.08 / ea $5.11 / 100 $47.20 / 1000
12026 1/4"-28 $0.21 / ea $15.70 / 100 $147.00 / 1000 $0.21 / ea $15.70 / 100 $147.00 / 1000
12027 5/16"-24 $0.46 / ea $33.78 / 100 $312.00 / 1000 $0.46 / ea $33.78 / 100 $312.00 / 1000
12028 3/8"-24 $0.65 / ea $48.31 / 100 $449.00 / 1000 $0.65 / ea $48.31 / 100 $449.00 / 1000

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

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See also

K-Lock nut

Metric K-Lock nuts

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