Kadee #820 1 Scale Straight Centerset Shank Couplers with Body Mount Gearboxes - Black
This industry leading coupler features Original Style Head Straight Centerset Shank Couplers, and #879 1 Scale centering spring and comes complete with #1920 Body Mount Gearboxes and lids.
It is not recommended to use a metal coupler directly on a metal surface or in a metal draft gearbox to avoid possible electrical crossover and shorting that may cause damage.