Get this package of 24 Kadee 400 coupler mounting screws. They are sized 0-48 x 1/8 and suitable for all scales. Part number is 380-400.

These Kadee 400 coupler mounting screws are easy to use. First, make sure the surface where you're installing them is clean and dry. Then, simply screw them in gently using a suitable screwdriver. When handling the screws, be careful not to drop them as they are small and can be easily lost. For maintenance, keep them in a dry place to prevent rusting. If you notice any signs of wear or damage, it's best to replace them to ensure proper performance.