Whisker Scale Self-Centering Knuckle Couplers - Magne-Matic - Medium 9/32in Centerset Shank with #242 Draft Gear Boxes - 25 Pack

The #158 coupler will work anywhere a NO.5, #28, #38, #58, #118, #119 & #148 Coupler will work

This industry leading coupler features an all metal coupler head, shank, and Whisker centering spring. The #158 Magne-Matic Whisker Metal Coupler may be mounted with the #213, #232, #234, #242, #252, #262 Gearboxes (not included) or with other manufacturers cast-on coupler pockets.

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.