Bachmann's Geep

[faraway]

Beside your tough luck of the lost screw do the Kadee #158 couplers not swing perfectly free. They are a touch thicker than the originals. I fixed that with a washer. In metric it is a diameter 1.7 washer for 1.6 screws.
The dimension in inch are: thickness 0.01, diameter 0.126, diameter of hole 0.068