Sta-Kon B86UF NON-INS RING 18-14 NO8STUD 45DEG

The B86UF is a #8 stud ring terminal, so it lands on a #8 screw or stud at the terminal block, bus bar, or ground lug. The ring tongue means it cannot be slipped off a loosened screw the way a fork or spade tongue can, which is why it is the usual choice for vibration-prone equipment and ground connections.

It is sized for 16-14 AWG conductors. Going smaller than 16 AWG leaves the barrel under-filled and the crimp will not hold tension; larger than 14 AWG will not seat in the barrel at all. Match the die on your crimper to the 16-14 range.

The tongue is bent 45 degrees off the barrel axis rather than sitting flat. That lets the wire approach a terminal screw from an angle instead of straight on, which is what you need in a crowded panel, a deep motor connection box, or where the wire has to turn immediately off the stud without a tight bend radius in the conductor itself. If your wire runs square into the stud, use a straight flat-tongue ring instead.

It is a non-insulated terminal, bare copper with no nylon or vinyl sleeve over the barrel. On anything above low-voltage control work you will want to cover the crimp with adhesive-lined heat shrink or a terminal boot, since the barrel and any exposed strands are live. The upside of bare is that you can inspect the crimp and the wire insertion before you cover it, and it drops into a tighter space than an insulated equivalent.

No. It is a copper terminal and should be used on copper conductors only. Terminating aluminum in a copper-only barrel sets up a dissimilar-metal joint that corrodes and loosens; for aluminum you need a connector rated AL or AL/CU with the appropriate inhibitor compound.

Country of origin on the B86UF is the United States, which is the detail that matters on federally funded, military, or transit work where domestic-source documentation is required for electrical components.

The B86UF is classed as a heavy-duty ring terminal, meaning a thicker tongue and barrel wall than a light commercial ring of the same 16-14 wire range. That extra material is what you want under a torqued #8 machine screw on motor leads, panel grounds, and equipment that sees vibration or repeated service, where a thin stamped tongue can deform or crack around the hole.