This binding post has 0.147-inch diam stud, so is good for at least 20 amps. Use it with non-conducting panel, or use nylon shoulder and flat washers with a metal panel. It appears to have metric threads. It may be a 4mm stud with 0.7mm thread pitch. An 8-32 nut may fit, but is not right. The posts I bought each came with two hex nuts and a lock washer.
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