Berzak rocket bottom

This is a replacement cap for the bottom of a vintage Berzak (Astro Manufacturing) mechanical rocket bank. If you're able to find one of those banks, the original locking metal cap is often missing. Either that or the key is missing. So this one is a simple screw-on replacement. Print it at 36 mm along the X axis.

The threaded portion of the model is derived from jamesarm97's screw cap:
https://www.thingiverse.com/thing:19240