Kadee 178 - HO Scale Whisker Metal Couplers & Scale Gearboxes - Medium (9/32in) Centerset Shank (2pair)

HO Scale Whisker Metal Couplers & Scale Gearboxes - Medium (9/32in) Centerset Shank (2pair) The #178 Kadee Magne-Matic Coupler features a Scale Metal Whisker Coupler (a smaller head coupler which is more to scale and is patterned after the type E couplers), insulated Scale Draft Gear Box and Lid with rear and center screw holes for mounting. 2-56 screws are the most commonly used for center hole. 0-48 or 0-80 screws are used for rear hole. Screw length will very depending on the mounting situation. 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. Package Includes: (2) Pair #178 Scale Whisker Metal Couplers - Medium Centerset Shank (2) Pair #178 Scale Snap-Together Gearboxes and lids (2) #625 Knuckle Springs