Quote:
Originally Posted by FC
If it indeed is from your car, it would almost certainly be a (solid) brass nut for a ground terminal.
If functions in your seats (power, heat, memory, etc) or elsewhere in your car act funny, it could be that the ground lug lost that nut and by extension some wires are ungrounded.
If it is rather thin, then that's a dead giveaway, as that would be a jam nut. But grounded lugs also use regular nuts.
A random example:
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It could well be solid brass. It's probably about 1/4-inch thick...No weirdness so far, but I haven't tried to move my seat or turn on the seat heater (for obvious reasons).