Sta-Kon RBC713 INS NYL RING TRM 16-14 HD 1/4IN GRN

The RBC713 is sized for 16-14 AWG conductors. That is the green color code on nylon insulated terminals, so the green insulation is your quick visual check on a panel where 22-16 (red) and 12-10 (blue) terminals are also in the bin. Stranded copper in that range crimps into the barrel with the matching 16-14 die station.

Yes, the ring tongue is a 1/4 inch stud size, so it drops over a 1/4-20 stud, a 1/4 inch terminal block screw, or a 1/4 inch ground lug bolt. Because it is a closed ring rather than a spade, the connection cannot vibrate off the stud if the nut backs off slightly, which is why it gets specified for motor leads and equipment grounds.

The RBC713 carries a 600 V rating, which covers standard commercial control panels, motor circuits, and line voltage branch wiring up to 600 V. It is UL recognized under file E9809.

Two things change. The nylon insulation sleeve resists abrasion, cracking, and heat better than vinyl, so it holds up in motor compartments and rooftop equipment. Heavy-duty means a thicker copper barrel wall for a stronger crimp and higher pull-out resistance than a standard-duty terminal in the same 16-14 range. If you are terminating low-voltage control wire in a dry interior cabinet, a standard vinyl terminal does the job; for vibration, heat, or anything an inspector will tug on, the heavy-duty nylon version is the one to use.

Copper. That matters for two reasons: it is the correct metal for terminating copper conductors with no dissimilar-metal concern, and it is not approved for aluminum building wire, which needs a dual-rated AL9CU connector with inhibitor compound instead.

Use a proper insulated-terminal crimp tool set to the 16-14 (green) nest. Heavy-duty nylon terminals have a thicker barrel than standard-duty, and pliers or an undersized die will leave a loose crimp that fails a pull test and heats up under load. The nylon sleeve is also stiffer than vinyl, so it needs the full insulation-support jaw rather than a bare-barrel die.

Country of origin is the United States, which is what institutional and government procurement buyers need when a domestic-preference clause applies to the order.

Order by manufacturer part number RBC713, Sta-Kon brand. The suffix tells you the configuration: 16-14 AWG green nylon insulated heavy-duty ring with a 1/4 inch stud hole. Distributors cross-referencing a bill of material should match on RBC713 rather than on color and stud size alone, since standard-duty and nylon heavy-duty versions share the same green code and 1/4 inch ring.