Sta-Kon RB2213M INSNY LKG FRK TRM 18-14 No6 BLU BLT

The RB2213M takes 18 to 14 AWG stranded copper wire. The blue insulation is the standard color code for that range, so a bin of blue terminals on a truck is the 16/14 class crimper die (blue) you want to use.

It is a No. 6 stud terminal, so it slips over a #6 screw or terminal post. The fork (spade) tongue slides in under a loosened screw head instead of requiring the screw to come all the way out, which is why it gets used on crowded terminal strips and device screws.

Yes, it carries UL file E9809. If your facility spec or inspector requires listed wire connectors on control and branch circuit terminations, that file number is what you cite on the submittal.

Copper. That means it is for copper conductors only, not aluminum. If you are terminating aluminum branch wiring you need an AL/CU rated connector instead, not this terminal.

They trade off differently. A ring terminal is captive, so the screw must be removed to install or remove it, but it cannot vibrate off. The RB2213M is a locking fork, meaning the tongue has upturned tangs that grip under the screw head to resist backing out while still letting you install it without pulling the screw. On dense control terminal strips where you are landing or re-landing conductors regularly, the locking fork is the faster part; on high-vibration equipment where nothing is ever touched again, use a ring.

Rated 600 V, which covers standard commercial control panels, motor control circuits, lighting circuits and building branch wiring at 120/208/240/277/480 V. The nylon insulating sleeve is what carries that rating, so don't trim it back during the crimp.

Sta-Kon RB2213M. One model covers the whole 18-14 AWG range at the No. 6 stud size in blue nylon, so there is no finish or size option to specify beyond the part number itself.

Nylon takes abuse that vinyl does not. It resists cracking and splitting when the barrel is crimped or when the wire is flexed at the terminal, and it handles higher temperatures and solvent or oil contact better. On an RB2213M the nylon sleeve also extends over the wire to support the conductor behind the crimp. For panel, motor and MRO work where terminations get pulled, dressed and re-dressed, nylon is the normal commercial choice.

Yes, country of origin is the United States. That matters on government, municipal and institutional jobs carrying domestic-sourcing requirements, where the terminal's origin has to be documented alongside the UL file.