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Kadee #36 Magne-Matic Versatile Couplers & Small Gear Box For Mounting With Limited Space #36 Coupler Equivalent Whisker® Coupler Option: Use the #252 Small Snap-together Gear Box & #146 Whisker® Coupler to make an equivalent coupler to the #36 Coupler. The advantages to using the #252 Gear Box and a #146 Whisker® Coupler are; the #146 Whisker® Metal Coupler is stronger & has a built in Whisker® centering spring, combined with the #252 Snap-together Gear box makes assembly simple and easy. -56 screws are the most commonly used for center hole.
Screw length will very depending on the mounting situation.
