#58 "Scale" Metal Couplers - Medium Centerset Shank This industry leading coupler features an all metal standard coupler, and #634 standard centering spring and comes complete with an insulated draft gearbox and lid. The #58 Magne-Matic® "Scale" Metal Coupler may be mounted with the included #232 Gearbox or with other manufacturers cast-on coupler pockets. The 158 "Scale" Whisker® Coupler is equivalent to the #58 "Scale" Metal Coupler. 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. Use the provided insulated gearbox or insulated #28 coupler. Refer to our helpful Coupler Conversion Charts to determine the appropriate coupler to use on your model. 

Two pair per package Package Includes: (2) Pair #58 "Scale" Metal Couplers - Medium Centerset Shank (2) Pair #634 Centering Spring NO.5® Style (2) Pair #232 Gearboxes (2) #625 Knuckle Springs #58 Metal Coupler Features: Material - Metal Shank Length - Medium (9/32") (center hole to back of coupler head) Coupler Offset - Centerset Knuckle Spring - #625 Centering System - Standard Shank Centering Spring - #634 Centering Spring NO.5® Style Head - "Scale" Head Works In Place of - NO.5®, #28, #118, #119, #148, #158, most medium centerset "clone" couplers Works With - #213, #232, #234, #242, most manufacturer cast-on draft gearboxes #232 Plastic Draft Gearboxes & Lids Features: Material - Insulated Plastic Dimensions - 29/64"L x 19/64"W x 7/64"H Works With - NO.5®, #58, 20-Series and all Whisker® Couplers Mounting Specifications: Mounting Height - 29/64" Centerline - 25/64" Trip Pin Height - 1/32" Center Hole - 2-56 Insulated Screws are the most commonly used. (Screw length will vary) Side Holes - 0-48 Self-Tapping or 0-80 Machine Screws. (Screw length will vary) 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.