The NO.5 Kadee Magne-Matic Coupler features a Metal Coupler, #634 Centering Spring. It is not recommended to use a metal coupler directly on a metal surface or in a metal draft gear box to avoid the possible electrical crossover or shorting that may cause damage. Use an insulated draft gear box or use the very strong plactic isolated #28 Coupler which has the same mounting dimensions as the NO.5 Coupler. Contains ten pair of NO.5 Metal Universal Kadee Couplers with phosphor bronze metal Centering Springs.
NOTE:
Does not include Draft Gear Boxes or Lids.