Terms
A Metric Coupling Nut is a hexagonal nut with an extended body usually used to couple two studs together.

-Heat treated to tensile strength class 10.
-For joining two studs DIN 6379.
-Minimum thread reach should be 1 x diameter.
-For functional and safety purpose bolts and studs to be coupled should be screwed in an either side to half the length of the nut.


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Unit of Measure
Items
Metric Extension Nut (DIN 6334)

6mm DIN 6334 Coupling Nut (metric)
Metric Extension Nut (DIN 6334)

8mm DIN 6334 Coupling Nut (metric)
Metric Extension Nut (DIN 6334)

10mm DIN 6334 Coupling Nut (metric)
Metric Extension Nut (DIN 6334)

12mm DIN 6334 Coupling Nut (metric)
Metric Extension Nut (DIN 6334)

14mm DIN 6334 Coupling Nut (metric)
Thread Size
(mm) 		N/A 6 N/A 8 N/A 10 N/A 12 N/A 14
Width Across Flats (s)
(mm) 		N/A 10 N/A 13 N/A 17 N/A 19 N/A 22
Width from
Corner to Corner (e)
(mm) 		N/A 11.5 N/A 15.0 N/A 19.6 N/A 21.9 N/A 25.4
O.A. Height (m)
(mm) 		N/A 18 N/A 24 N/A 30 N/A 36 N/A 42
Availability N/A To Be Advised