This is a Threaded Coupler for joining 4-40 size rods by Dubro.

FEATURES: Polished steel construction.

INCLUDES: Two steel threaded couplers.

REQUIRES: Threading onto rod.

SPECS: Length: 36.5mm (1.438") Diameter: 3.5mm (.138") Length of thread: 18.5mm (.731") Thread size: 4-40

COMMENTS: This coupler will join two 4-40 rods, with a male connection on one end and a female on the other. ir/kh  

BOX DIMENSIONS: 2.00" W. X .25" H. X 2.25" L. BOX WEIGHT: .01 LBS.