Sta-Kon E271 NON-INS FLAG TERM, 6, 5, 1/4, METAL

The E271 is sized for 6 AWG conductor. It is a non-insulated flag terminal, so the barrel is bare copper with no sleeve, and the wire gauge has to match: 6 AWG stranded copper crimped in a bare barrel is what this lug is built around. For smaller conductors you need a different part number in the flag terminal range, not this one.

It is a 1/4 inch stud terminal. The tongue takes a 1/4 inch bolt or screw, so it lands on a 1/4-20 stud on a breaker, bus bar, or terminal block. If your stud is #10 or 5/16, this tongue will not seat correctly.

A flag terminal puts the tongue at a right angle to the wire barrel, so the conductor runs parallel to the mounting surface instead of straight into it. That is what you want in a tight panel, a motor connection box, or anywhere the wire cannot make a bend radius coming off the stud. A standard ring terminal brings the wire in line with the stud and needs depth behind it. Same 6 AWG conductor, different approach geometry.

No insulation on this one. The E271 is a bare metal copper lug, so once it is crimped and bolted down you are responsible for the covering yourself, typically heat shrink or a boot over the barrel. Electricians often prefer non-insulated for 6 AWG because you can inspect the crimp and because the finished connection can be shrunk to the exact dielectric you need. If you want the covering built in, specify an insulated flag terminal instead.

It carries UL file E9809. That is the reference an inspector or a spec writer will want for a terminal going into a listed assembly, and it is the number to cite on a submittal for an institutional or government job.

No. The E271 is a copper terminal and is intended for copper conductor. Terminating aluminum wire needs a lug rated AL or AL/CU with the appropriate inhibitor compound; putting bare aluminum into a copper-only barrel invites galvanic corrosion at the joint.

Order Sta-Kon E271. That is the manufacturer part number for the non-insulated flag terminal in 6 AWG with the 1/4 inch stud tongue. It is a single configuration, so there are no finish or size options to specify alongside it.

At 6 AWG with a bare copper barrel, this is a heavy-duty crimp. A 6 AWG non-insulated lug needs a full-cycle ratcheting or hydraulic crimper with a die matched to the barrel, not a light insulated-terminal plier. Crimping a bare 6 AWG barrel with an undersized tool is the usual cause of a loose, high-resistance connection.

Country of origin is the United States. That matters on public work and on federal or state contracts with domestic sourcing language, where a US-origin electrical termination is often a condition of the purchase order.