Sta-Kon B87NP NONINS RING TERM, 18-14,NO10,NKLPLT

The B87NP takes 18 to 14 AWG stranded or solid copper conductor. If you are terminating 12 AWG or larger, this barrel is too small and you need a terminal rated for that range instead.

Yes. The B87NP is sized for a No. 10 stud or screw, so it lands on a #10 terminal screw at a breaker, ground bar, or motor terminal block without a washer adapter.

It is a non-insulated ring terminal, so the barrel is bare metal after crimping. On anything where the connection could contact a grounded enclosure wall or an adjacent terminal, slide heat shrink or a nylon insulating sleeve over the barrel. Inside a ground bar or on a dedicated grounding screw, bare is normal practice.

A ring terminal like the B87NP is the choice anywhere vibration or an accidental pull could dislodge the connection, because the screw has to come fully out before the wire can leave. A fork (spade) terminal slides off the side with the screw only loosened, which is faster for panels you service often but not what you want on a motor, pump, or anything that shakes.

The body is copper with a nickel plating. Copper barrels are for copper conductors; do not crimp aluminum conductor into it. The nickel plate is what makes this one usable at higher temperatures than a tin-plated terminal, which is why you see nickel-plated rings on heater, oven, and motor lead terminations.

Use a proper crimp tool. A non-insulated barrel like this needs a die that forms the barrel around the conductor evenly; pliers flatten it and leave a high-resistance joint that heats up under load. Match the tool die to the 18-14 AWG range.

Manufactured in the United States, which matters on federal, state, and institutional jobs carrying domestic-sourcing requirements for electrical materials.