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Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Product Subgroup:
- General Terminals
- Product Type:
- Nylon Insulated Flanged Fork Terminal
- Wire Size:
- 18-14 AWG
- Department:
- Electrical
- Product Group:
- Wire Termination
- Product Color:
- Blue
- Product Material:
- Nylon
Sta-Kon RB1253M – Frequently Asked Questions
1) What wire gauge does the Sta-Kon RB1253M fork terminal take?
The RB1253M handles 18 to 14 AWG stranded or solid wire. That blue insulation is the standard color code for the 16-14 AWG range, so if you are crimping 12 AWG or larger you need a different barrel size, not this one.
2) What screw size does this Sta-Kon fork terminal fit?
It is made for a No. 10 stud or screw. The fork slot slides over a #10 terminal screw without having to pull the screw all the way out, which is why electricians use these on breaker panels, control blocks and terminal strips instead of a ring tongue.
3) Should I use a flanged fork terminal or a ring terminal on a terminal strip?
Use the fork when you want to land or remove a wire by just loosening the screw, which saves real time on a panel with dozens of terminations. A ring tongue is the right call where vibration or a code requirement demands a captive connection, since a fork can slip out from under a loose screw. The RB1253M is the fork style, with a flange on the tongue that resists pulling out from under the screw head better than a plain spade.
4) Is the insulation on this Sta-Kon terminal nylon or vinyl?
Nylon. Nylon insulation takes more abrasion and a higher temperature than vinyl and is less prone to splitting when the barrel is crimped, which is why it is the common choice in commercial control panels and under-hood style work. The sleeve is blue.
5) Do I need a special crimper for the Sta-Kon RB1253M?
Use a crimp tool matched to insulated terminals in the 16-14 AWG blue range. The barrel is sized for 18-14 AWG wire, and a tool nest cut for the red (22-18) or yellow (12-10) range will under- or over-crimp it. Sta-Kon terminals are designed around Sta-Kon ratchet crimpers, and any insulated-terminal crimper with a blue-coded 16-14 nest will seat it correctly.
6) Is the RB1253M a single terminal or a strip of them?
The RB1253M is a Mylar-carrier version, meaning the terminals come banded on tape for use in a strip-fed or production crimping setup rather than loose in a bag. If you are hand-crimping one-offs on a service call, a loose-piece 18-14 AWG No. 10 flanged fork is the easier format to work from.
7) Where is the Sta-Kon RB1253M terminal made?
Made in the United States. That matters on government, institutional and federally funded jobs where domestic-sourcing language shows up in the spec, so it is worth noting on a submittal.
How fast can I get the Sta-Kon RB1253M 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 RB1253M come with a warranty?
Absolutely. The Sta-Kon RB1253M 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 RB1253M?
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 RB1253M 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.