Kadee Magne-Matic 747 Medium Underset Shank Metal Couplings, 2 Pk, O Gauge

This industry leading coupler features New Generation AAR Type "E" "Prototype" Head Medium Overset Metal Couplers, and #850 O Scale centering spring and comes complete with Plastic Gearboxes and lids. The #747 Metal Coupler may be mounted with the included #817 Plastic Gearbox or #818 Metal Gearbox (sold seperatly), #819 Extended Metal Gearbox (sold seperatly). 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. #747 Coupler Instructions Two pair per package UPC: 765484007470 USA Flag Made in the U.S.A. O-Scale New Generation AAR Type "E" "Prototype" Head: Simple Drop in Design Trouble Free Operation Hidden Knuckle Spring AAR Type "E" Coupler Style Compatible with Kadee® O-Scale Couplers World-Renowned Quality & Performance They just Last & Last & Last... Package Includes: (4) Each #747 Type "E" "Prototype" Metal Couplers - Medium Underset Shank (4) Each #817 Plastic Gearboxes & lids (5) Each #850 O Scale Centering Springs #747 Metal Coupler Features: Material - Metal Shank Length - Medium (47/64") (Knuckle pulling face to center hole of Draft Gearbox) Coupler Offset - Overset Centering Spring - #850 O Scale Centering Springs Head - New Generation AAR Type "E" "Prototype" Head Works With - #817, #818, #819 Draft Gearboxes #817 Plastic Draft Gearboxes & Lids Features: Material - Plastic Dimensions - 25/32"L x 1/2"W x 7/32"H Works With - #740, #742, #745, #746, #747, #800, #801, #804, #805, & #816 Couplers Mounting Specifications: Mounting Height - 1 1/16" Centerline - 1 1/16" Trip Pin Height - 1/16" Mounting Holes - 2-56 Insulated Screws are the most commonly used. (Screw length will vary)