Item description for 3/8"-16 to 1/4"-20 x 1-1/8" Zinc Plated Steel Coarse Thread Coupling Nuts

3/8"-16 to 1/4"-20 x 1-1/8" Zinc Plated Steel Coarse Thread Coupling Nuts

Diameter: 3/8"
Length: 1-1/8"
Material: Steel
Finish: Zinc
Driver Type: 9/16" Wrench
Thread Size: 16 (Coarse)
Thread Length: 3/8-16 to 1/4-20
Style: Reducer
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.