Coupling nuts are fully threaded and used to join two threaded rods or studs end-to-end into a single continuous length.
Nominal Size: 7/16"
Thread: 14 TPI (Coarse)
Width Across Flats: 5/8"
Length: 1-1/4"
Material: Stainless Steel
Hardness: 18-8
Type: Coupling Nut
A coupling nut is a long nut tapped from each side to meet in the middle, rather than all the way through in the same direction, used to connect two threaded rods end to end.