Excellent fit and finish
I've had a brass pill case for many years that was wearing out so when I went to buy a new one, I was quite disappointed to find pharmacies now only sold super low quality aluminum cases. Literally everything about them was staggeringly sub par. Figured I might as well drop the extra cash and get a good one. Not disappointed on this choice. These have good O-ring fit, every edge inside and out has been either radiused or chamfered, excellent alignment between all the parts, and good thread engagement. She seller mentions it is a fine thread but that is a relative thing. The threads are 0.8" x 18TPI which is a good balance for this application and considering that is a very non-standard size, these were probable made on a CNC which explains the price.
Rating: 5 stars