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- Why have ECX style screw heads become standard on electrical switches and receptacles?
(In the USA) recently purchased swtiches and receptacles are held to electric boxes with screws that don't work well with either Phillips or slotted screwdrivers. ( e.g. https://www.homedepot.com/p/Leviton...RCH=REC-_-pipsem-_-301447034-_-100026991-_-N& ) I understand this type of screw head is called "ECX". When did this type of screw become standard? - and why?
Electrical switches once came with screws that were a compromise between Phillips and slotted and did work with either type of screwdriver.
Although the ECX screws can be driven in a clumsy way with a Phillips or slotted bit, neither of those bit types really fits them.
Electrical switches once came with screws that were a compromise between Phillips and slotted and did work with either type of screwdriver.
Although the ECX screws can be driven in a clumsy way with a Phillips or slotted bit, neither of those bit types really fits them.