A row of teeth grips the screw like a lock washer for an even more secure hold than other ring terminals. These terminals prevent broken connections on compressors, engines, and other equipment with continuous vibration and sudden jolts.

While ring terminals don't pop off as easily spade and hook terminals, they take a bit longer to install because you have to completely remove the screw. Attach your wire with a crimping tool to avoid a damaged barrel and loose connection.

Insert these terminals into tiny openings in terminal blocks and other connection points. They're an alternative to threading and poking wire directly into the opening, which can fray the wire and lead to short circuits. Pin terminals are similar to wire ferrules, but they have a rounded, uniform profile that you can solder to holes in printed circuit boards and other thin surfaces. Attach your wire with a crimping tool to avoid a damaged barrel and loose connection.

Extend a run or repair damaged wire instead of installing a new line. Squeeze the wire splice with a crimping tool for a secure end-to-end connection.