As part of Sharp’s international “screw screws” campaign, they’ve developed some “Easy Release Screws,” which when heated to 100 degrees Celsius (212 degrees Fahrenheit for normal ...

Natural release allows the pressure inside the pot to come down gradually on its own, while quick release will depressurize your pot faster. ... An icon in the shape of a lightning bolt.

Not all quick release plates are the same, unfortunately. At one time, practically every tripod maker used a different system, but there has been a degree of standardisation since then, thankfully.