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Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Product Subgroup:
- General Terminals
- Product Type:
- Vinyl Insulated Heavy-Duty Ring Terminal
- Wire Size:
- 16-14 AWG
- Department:
- Electrical
- Product Group:
- Wire Termination
- Product Color:
- Blue
- Product Material:
- Vinyl
Sta-Kon RBC757 – Frequently Asked Questions
1) What wire gauge does the Sta-Kon RBC757 ring terminal accept?
The RBC757 is sized for 16-14 AWG stranded or solid copper wire. That is the range the blue vinyl insulation color code signals on Sta-Kon terminals, so if you are terminating 12 AWG or 18 AWG you need a different terminal in the series.
2) Will the Sta-Kon RBC757 fit a 1/2 inch stud or bolt?
Yes. The RBC757 is the 1/2 inch stud size in the heavy-duty ring terminal line, so it lands on a 1/2 inch bolt, stud or busbar screw. Pair it with 16-14 AWG wire.
3) Should I use a ring terminal or a spade (fork) terminal on a panel lug?
A ring terminal like the RBC757 is the choice anywhere vibration or an accidental tug could pull the connection loose, because the closed ring cannot come off the stud unless the nut is removed. A fork or spade terminal slides out from under a loosened screw, which makes it faster for frequent service work but less secure on motor, generator and equipment grounding connections.
4) Why is the Sta-Kon RBC757 called heavy duty compared to a standard ring terminal?
Heavy duty in this line refers to a thicker tongue and barrel than the standard 16-14 AWG ring terminal, which is what lets it carry a 1/2 inch stud hole without the tongue deforming when the nut is torqued down. Useful on equipment grounds and motor terminal boxes where the lug stud is much larger than the conductor.
5) Do I need a special crimp tool for the Sta-Kon RBC757?
It is an insulated barrel crimp, so use a tool with the die for insulated terminals in the blue (16-14 AWG) range. A bare-terminal or uninsulated die crushes the vinyl sleeve and gives an unreliable crimp. Nothing is included with the terminal itself.
6) What part number do I order for a 1/2 inch heavy-duty blue ring terminal?
Order Sta-Kon RBC757. That is the manufacturer part number for the 16-14 AWG blue vinyl insulated heavy-duty ring terminal with the 1/2 inch stud hole.
7) Is the insulation on the Sta-Kon RBC757 vinyl or nylon?
Vinyl. The RBC757 uses a vinyl insulating sleeve over the barrel, which covers the crimp and the wire entry. Nylon-insulated terminals are the ones to specify where you need higher temperature or abrasion resistance; this is the standard vinyl version.
8) Is the Sta-Kon RBC757 made in the USA?
Yes, country of origin on the RBC757 is the United States, which matters for government, military and Buy American project submittals.
How fast can I get the Sta-Kon RBC757 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 RBC757 come with a warranty?
Absolutely. The Sta-Kon RBC757 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 RBC757?
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 RBC757 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.