#18 NEM 362 European Style Coupler - Medium 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. Refer to our helpful Coupler Conversion Charts to determine the appropriate coupler to use on your model. Two pair per package (w/o Draft Gear Boxes) UPC: 765484000181 Package Includes: (2) Pair #18 Couplers (Aassembled) - Medium Underset (2) #622 Knuckle Springs #18 Coupler Features: Material - Metal Knuckle, Plastic Coupler Swallow-tail Shank Length - Medium (8.63mm , .340 inch , 11/32") (pulling face to the dovetail sholder) Coupler Offset - Underset Knuckle Spring - #622 Centering System - NEM European Style Coupler Centering Spring - #620 Centering Spring European Style Couplers-NEM 362 Style Head - Standard Head Mounting Specifications: Mounting Height - 8.5mm , .334" Centerline - 9.9mm , .390" Trip Pin Height - .08mm , .031" WARNING: CHOKING HAZARD - Small Parts - Not for children under 14 years. Kadee Quality Products Co. products are not toys and are not intended for children under 14 years old.