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NONINSL TERM No4AWG 5/16 BH NKLPLTD
Manufacturer Resources
Product Specs
- Country Of Origin:
- Mexico (MX)
- Product Subgroup:
- General Terminals
- Product Type:
- Non-Insulated Ring Terminal
- Voltage Rating:
- 600 V
- Wire Size:
- 4/4AN
- Department:
- Electrical
- Product Group:
- Wire Termination
- Product Material:
- Copper
Sta-Kon F10721NP – Frequently Asked Questions
1) What wire size and stud size does the Sta-Kon F10721NP ring terminal take?
The F10721NP is built for 4 AWG conductor and a 5/16 inch stud or bolt. It is a non-insulated ring (closed barrel) terminal, so the ring goes over the stud and the lug cannot slip off under vibration the way a fork terminal can. If your conductor is a different gauge, use the matching Sta-Kon size instead; a 4 AWG barrel will not crimp reliably on a smaller conductor.
2) Can I use this 4 AWG ring terminal on a 480V panel circuit?
Yes. The F10721NP carries a 600 V rating, which covers 120/208, 277 and 480 V distribution work. Because it is non-insulated, the crimped barrel and the ring are live metal, so it needs to land inside an enclosure or be covered with heat shrink or a boot where it could be touched or could contact a grounded surface.
3) Is the Sta-Kon F10721NP copper or aluminum, and can I put it on aluminum conductor?
The body is copper with a nickel plating. That makes it a copper-only terminal, so it should be crimped on copper conductor. For aluminum or stranded aluminum feeders you need a lug marked AL9CU or AL-rated, not this one.
4) Why would I pick a nickel-plated terminal over a plain tin-plated one?
Nickel plating is the high-temperature and corrosion choice. On the F10721NP it covers the copper barrel and ring, which holds up better than tin on hot terminations such as heater, oven, resistor bank and engine-compartment connections where tin plating softens or oxidizes. For ordinary indoor panel work a tinned copper lug is normally sufficient.
5) Does this terminal come with insulation, or do I need to add it?
No insulation is on it. The F10721NP is a bare, non-insulated lug, so if the connection needs covering you supply your own adhesive-lined heat shrink or a snap-on insulating cap sized for a 4 AWG barrel. Buyers who want the insulation built in should order an insulated ring terminal instead.
6) Can I crimp a 4 AWG Sta-Kon lug with regular hand pliers?
Not reliably. A 4 AWG non-insulated barrel needs a heavy crimp tool, a hydraulic or long-handled mechanical crimper with the correct die for the barrel size. Hand pliers or small insulated-terminal crimpers will not compress the copper enough, and a loose crimp on a 600 V feeder termination heats up. The terminal itself ships bare; the tool and die are separate.
7) Where is the Sta-Kon F10721NP made?
Country of origin is Mexico. That matters on jobs with domestic-sourcing language in the spec, so confirm the project requirement before standardizing on this part number for a government or institutional package.
How fast can I get the Sta-Kon F10721NP delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Sta-Kon F10721NP come with a warranty?
Absolutely. The Sta-Kon F10721NP is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Sta-Kon F10721NP?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Sta-Kon F10721NP from ZenSupply?
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