Sta-Kon RZ22-8 INSNYL RING TERM, 26-22, No8, YELLO

The RZ22-8 is sized for 26-22 AWG stranded wire, which is the yellow-coded range in the Sta-Kon nylon insulated line. If you're terminating 22-16 AWG or 16-14 AWG conductors, this barrel is too small to crimp reliably and you need the next size up in the series.

Yes. The ring tongue on the RZ22-8 is drilled for a No. 8 stud or screw, which is what the -8 in the part number designates. For a 10-32 or 1/4-20 stud you'd want the matching ring terminal in the same 26-22 AWG range with the larger tongue.

The RZ22-8 carries a 600 V rating, which covers standard line-voltage control panels, lighting circuits, and low-voltage signal work alike. Above 600 V it is not the right termination.

A ring terminal like the RZ22-8 is the choice where the connection cannot be allowed to vibrate loose or slip off, because the screw has to come fully out before the wire can leave. A fork or spade terminal slides in under a partly loosened screw, which is faster for panel service work but will walk off the stud under vibration. For motor studs, grounding points, and anything on equipment that moves, use the ring.

The barrel is copper, so the RZ22-8 is for copper wire only. Crimping copper hardware onto aluminum conductors sets up galvanic corrosion at the joint; aluminum wire needs a connector specifically rated AL or AL/CU.

Yellow on the nylon insulation is the gauge code for the 26-22 AWG range in the Sta-Kon insulated line. On the job it lets an inspector or the next electrician read wire size off the finished crimp without a gauge, and it tells you which die station on the crimp tool to use. Red and blue sleeves on the same style of terminal are different wire ranges, not different brands.

Nylon, which is what the RZ22-8 uses, holds up better than vinyl against abrasion and cracking and tolerates higher temperatures, so it is the usual pick for motor enclosures, rooftop units, and panel work where the harness gets pulled through tight spaces. Vinyl insulated terminals are a lower-temperature, general-purpose option.

Yes, the RZ22-8 ring terminal is manufactured in the United States, which matters if you are filling a government, federal facility, or Buy American specification where domestic origin has to be documented on the submittal.

The part number is RZ22-8. The RZ prefix is the nylon insulated ring style, 22 identifies the 26-22 AWG yellow wire range, and 8 is the No. 8 stud size. Order by that full designation, since the adjacent RZ numbers in the series cover different wire ranges.