B-Line Eaton series box suppor...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,781.56
B-Line Eaton series box support fasteners, Communication and low , 1" Height, 1" Length, 1" Width, 0.54lbs, 0.75" Raise, Uni-Mount box support/cover p

B-Line Eaton series box support fasteners, Communication and low , 1" Height, 1" Length, 1" Width, 0.54lbs, 0.75" Raise, Uni-Mount box support/cover p

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Model: BB45-12
Selected Model is

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

$1,781.56
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Eaton B-Line series box support fasteners, Communication and low voltage, 1" Height, 1" Length, 1" Width, 0.54lbs, 0.75" Raise, Uni-Mount box support/cover plate mounting brackets, Double gang, Pre-galvanized

Manufacturer Resources

Product Specs

Certifications:
UL/CUL listed
Product Height:
1 in
Product Length Depth:
1 in
Product Weight:
.54 lb
Product Width:
1 in
Department:
Electrical
Product Finish:
Pre-galvanized
Product Size:
3/4 inch raise
Product Material:
Steel

B-LINE BB45-12 – Frequently Asked Questions

1) What is the Eaton B-Line BB45-12 Uni-Mount bracket used for?
The BB45-12 is a box support and cover plate mounting bracket for communication and low voltage double gang boxes. It supports the box in the wall opening and gives the cover plate something to screw into, with a 3/4 inch raise built in so the plate sits proud of the finished surface.
2) Will the B-Line BB45-12 work on a single gang low voltage box?
No. The BB45-12 is a double gang bracket, so it spans a two gang opening. For a single gang ring you need a single gang support bracket instead.
3) What does the 3/4 inch raise on the BB45-12 bracket do for drywall thickness?
The 3/4 inch raise brings the mounting plane forward off the box, so a box set back behind thick finish material (double layer drywall, tile or panel) still lands flush with the cover plate. If your box is already flush with the finished wall, that 3/4 inch offset would push the plate out too far.
4) What part number do I order for the B-Line double gang Uni-Mount box support?
Order Eaton B-Line BB45-12. That is the manufacturer part number for the double gang, 3/4 inch raise Uni-Mount box support and cover plate mounting bracket.
5) Is the B-Line BB45-12 bracket steel, and will it hold up in a damp or unfinished space?
It is steel with a pre-galvanized finish. Pre-galvanized steel is the standard choice for indoor and protected rough-in work; it is not intended for exposed outdoor or corrosive environments, where a hot-dip galvanized or stainless support is the better call.
6) How much does the B-Line BB45-12 bracket weigh and how big is it?
Each BB45-12 weighs 0.54 lb and the listed dimensions are 1 inch height, 1 inch length and 1 inch width. Useful if you are pricing out freight on a bulk rough-in order or planning carton counts for a multi-floor install.
How fast can I get the B-LINE BB45-12 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 BB45-12 come with a warranty?
Absolutely. The B-LINE BB45-12 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 BB45-12?
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 BB45-12 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.
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