I believe the Atlas cars with the coupler pads are tapped for 2mm screws. As mentioned, they do not fit the Kadee pocket profile exactly. What I do is take a #43 drill and ream out the Kadee pocket holes I will be using to mount the coupler. This does leave the holes & sleeves completely intact. The 2mm screws (that I obtained from Micro Fastners) are also just a tad smaller in diameter that the 2-56 screws. The 2mm screws will now perfectly align with the threaded holes in the Atlas cars. Besides, the heads on these screws are allot smaller than the on the wood screws.
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