Does anyone know of a source for an assortment of tiny machine screws and washers? Yesterday, after installing a DCC decoder in a new N gauge Proto 0 - 8 - 0, I managed to drop the screw and washer that fasten the drawbar to the locomotive. Naturally, it disappeared, never to be found again. When I called Walthers, they advised that they don't have parts for that unit yet, as it was just released. The man I talked to said he would see if he could find one that would fit, however. Since this is not the first time I have had a problem of this sort (and I am sure it won't be the last), I need to get a supply of screws and washers. I haven't been in the hobby long enough to build up a supply - besides that, I am sure I can lose them faster than I could accumulate them! Any help would be appreciated.