Kadee #18 Couplers.
This industry leading coupler features an NEM 362 European Style Coupler. The #18 Magne-Matic® NEM 362 European Style Coupler that is mounted in the HO-Scale NEM 362 draft gear box pocket.
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.