X-Haibei 2 Pcs Trailer Spring Latch Pin, 1/2 inch Barrel Bolt Spring Loaded Silver Latch Heavy Duty for Ramp Door Fence RV

Garage Door Lock Kit with Spring Latch （Including All Hardware） Garage Door Lock Set Fits 1-3/8" Through 2" Thick Doors(Random Keyed) for Single/Double max Width to 18ft

Qasem Alsaloumi on Instagram: "This brilliant little mechanism shows how a spring-loaded safety trigger actually works A compressed spring stores energy but a curved metal latch keeps everything locked in place The moment the latch bends past its critical point the red block is released instantly and the stored spring energy turns into motion A simple design but used everywhere from safety locks to mechanical switches and precision tools Elegant physics in a tiny space #Engineering #Mechanics #I