I am converting a couple of Atlas cyl hoppers over to Kadees. There is a spacer that mounts over two bosses. What screws work in those or do you do something other than the Atlas adapter? Thanks.
Brendan
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Sorry, only just seen this post. I have one of these models fitted with Kadees, will have to check it when I get chance, but I think the standard Atlas screws hold the spacer in place, then I used 10BA nuts & bolts to hold the Kadee box.
The Atlas screws are what I lack. I might just glue the spacer down and redrill for 2-56. Thanks.
Brendan
Looks like I didn't bother with the Atlas screws!! The 10BA nuts & bolts hold the whole lot in place. They are countersunk so I've shown a 'top side' view, and the underneath view.
I'm not sure if 'BA' is a British standard for thread measurements, or what a US equivalent is. We are, after all, two nations divided by a common language!! 
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The Atlas cars seem to be already tapped and threaded for 2mm bolts. The coupler box sticks out a bit from the end sill. I bought a pack of 10 x 2mm bolts, but I can’t remember where I got them.
I went back to the 3 rail scale discussion, and I remembered getting the 10 x 2mm bolts from Micro Fasteners in Lebanon, NJ. I think you could try 8 x 2mm also. I mostly run three rail with the lobster claw couplers, so it’s easy to go back by taking the Kadees off. I don’t cut the lobster claws off, I just turn the trucks around and mount the Kadees on the pads.
Thanks for the photos, @SundayShunter. I think I'll go that way. @Artie-DL&W - I like to leave them unmolested, as well.
Brendan
