Screws look beautiful and I like to make them visible in products, but I have to admit that those hidden ones have some style too! It’s based on a spring loaded mechanism and were invented by Jeff and Brandon Serle, who are cleanroom engineers.

Link: flushfasteners.com

A large flat screw on wooden surface similar to boat. The  hidden torx hold is almost invisible.
An industrial hinge in a D shape with 3 small screw with hidden hole.
4 steps showing the mechanism of the spring with a tool pushing a hex hole. A logo for the IF Design Gold award of 2026

Source: via Core77