Coupling nuts, Stainless steel 316

Coupling 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.

Coupling nut diameter and length

Click on a product # for additional info

Prod. # Size Each price Bag price Bulk price Price Buy

Coarse (standard) thread

20984 #10-24 x 3/4" $3.99 / ea $66.45 / 25 $611.00 / 250 $3.99 / ea $66.45 / 25 $611.00 / 250
20986 1/4"-20 x 7/8" $1.85 / ea $30.89 / 25 $278.00 / 250 $1.85 / ea $30.89 / 25 $278.00 / 250
20988 5/16"-18 x 1" $2.00 / ea $33.32 / 25 $300.00 / 250 $2.00 / ea $33.32 / 25 $300.00 / 250
20990 3/8"-16 x 1-1/8" $2.50 / ea $41.61 / 25 $374.00 / 250 $2.50 / ea $41.61 / 25 $374.00 / 250
20992 4 7/16"-14 x 1-1/4" $9.59 / ea $63.95 / 10 $588.00 / 100 $9.59 / ea $63.95 / 10 $588.00 / 100
20994 1/2"-13 x 1-1/4" $4.61 / ea $76.86 / 25 $692.00 / 250 $4.61 / ea $76.86 / 25 $692.00 / 250
20996 5/8"-11 x 1-3/8" $11.92 / ea $79.50 / 10 $731.00 / 100 $11.92 / ea $79.50 / 10 $731.00 / 100
20995 5/8"-11 x 1-3/4" $12.80 / ea $85.33 / 10 $785.00 / 100 $12.80 / ea $85.33 / 10 $785.00 / 100
20997 3/4"-10 x 2" $15.76 / ea $105.08 / 10 $967.00 / 100 $15.76 / ea $105.08 / 10 $967.00 / 100
20998 4 7/8"-9 x 2-1/2" $45.21 / ea $180.83 / 5 $798.00 / 25 $45.21 / ea $180.83 / 5 $798.00 / 25
20999 4 1"-8 x 2-1/2" $49.71 / ea $198.86 / 5 $877.00 / 25 $49.71 / ea $198.86 / 5 $877.00 / 25

Fine thread

20985 #10-32 x 3/4" $4.70 / ea $69.22 / 25 $618.00 / 250 $4.70 / ea $69.22 / 25 $618.00 / 250
20987 4 1/4"-28 x 7/8" $6.22 / ea $103.61 / 25 $932.00 / 250 $6.22 / ea $103.61 / 25 $932.00 / 250
20989 4 5/16"-24 x 1" $7.03 / ea $115.98 / 25 $913.00 / 250 $7.03 / ea $115.98 / 25 $913.00 / 250
20991 4 3/8"-24 x 1-1/8" $8.22 / ea $137.05 / 25 $1,233.00 / 250 $8.22 / ea $137.05 / 25 $1,233.00 / 250

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

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See also

Coupling nut

Metric coupling nuts

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

Rivet nuts

Threaded inserts & Rivet nuts

For adding a machine thread to material that otherwise can not be tapped.