On Sun, 17 Feb 2019 18:03:48 -0500, wrote:

On 2/17/19 5:38 PM, Commander Kinsey wrote:
In the 21st century, has someone not invented a screw thread which
always aligns perfectly?Â* Even a simple bottle top never goes on
straight, you have to turn the bloody thing backwards to make it jump
into place.

Methinks what you are looking for is called a "cork".

BTW, we teach our children the "turn it backwards" maneuver.

In the ordinance business we had to unteach that trick for guys
installing long time delay bomb fuses.