B-Line Eaton series other encl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$61.60
$15.43
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B-Line Eaton series other enclosure accessories, 12 and 4, Used with large 3R panel mount, Wall mounting, .375-16 flange nut

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Model: 10243 B

In Stock (leaves warehouse same day if ordered before 3pm ET)

$61.60
$15.43
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Eaton B-Line series other enclosure accessories, NEMA 12 and 4, Used with large 3R panel mount, Wall mounting, .375-16 flange nut

Manufacturer Resources

Product Specs

Application:
Used with large 3R panel mtg
Certifications:
UL Listed
Degree Of Protection:
NEMA 12 & 4
Mounting Method:
Wall
Product Diameter:
.68 in
Product Height:
.375 in
Product Weight:
.13 lb
Department:
Electrical
Product Group:
Fasteners
Product Subgroup:
Washers / Nuts / Bolts / Screws
Product Type:
.375-16 flange nut
Product Details:
.375-16 flange nut

B-LINE 10243 B – Frequently Asked Questions

1) What thread size is the Eaton B-Line 10243 B flange nut?
It's a 3/8-16 flange nut, so it threads onto 3/8 inch coarse-thread studs or bolts (16 threads per inch). The nut measures .68 inch across and .375 inch high, and the integral flange spreads the load so you don't need a separate washer.
2) What is this B-Line flange nut actually used for on an enclosure?
It's the fastener that goes with large 3R panel mounting hardware on Eaton B-Line enclosures, used for wall mounting. It is a hardware piece, not the panel or the bracket, so order the mounting kit or panel separately if you need those too.
3) Can I use this nut on a NEMA 12 or NEMA 4 enclosure without hurting the rating?
Yes. The 10243 B is rated for NEMA 12 and 4 service, so it suits dust-tight and drip-tight indoor enclosures as well as hosedown/watertight NEMA 4 applications. It is also UL Listed.
4) Does a flange nut mean I can skip the washer?
That's the point of the design. The flange on this 3/8-16 nut gives a bearing surface .68 inch across, spreading clamp load against the panel or bracket in place of a flat washer. Handy inside an enclosure where you're working one-handed and don't want loose washers dropping onto live gear.
5) Will this nut fit a 1/4-20 or metric M8 stud?
No. It's 3/8-16 only, so it won't thread onto 1/4-20, 5/16-18, or metric M8 hardware. Match the stud diameter and thread pitch exactly or the nut will cross-thread and you will lose the seal integrity of the mount.
6) How is the B-Line 10243 B flange nut sold and what does one weigh?
It is catalogued under a single model, 10243 B, at .13 lb each. Confirm the quantity you need per panel mount before ordering, since a panel mounting job typically takes several.
How fast can I get the B-LINE 10243 B 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 B-LINE 10243 B come with a warranty?
Absolutely. The B-LINE 10243 B 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 B-LINE 10243 B?
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 B-LINE 10243 B from ZenSupply?
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