#8-32 x 1/2" Zinc Plated Steel Coarse Thread Coupling NutsType: Coupling Nuts
Thread Size: 32 (Coarse)
Type: Coupling Nut
Box of 50.
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.