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.

Specifications

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.