A good choice for crowded electrical panels and enclosures, these lugs have attachment points at several different angles so you can thread your wire past nearby obstructions.

Set screw lugs are easier to install than compression lugs, and they can be reused because you don't crush the barrel to attach the wire. They don't hold the wire as securely as compression lugs, however—use them when pulling and bending aren't a concern and you need to easily break your connection for maintenance or adjustments.