B-Line B281MZN Eaton series st...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$515.00

B-Line B281MZN Eaton series strut fittings and accessories, 3.5" Height, 6" Length, 6" Width, 4.70lbs, Steel, Square post base, centered offset, Post base for B22-2PL, Electro-plated

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Model: B281MZN
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$515.00
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Eaton B-Line series strut fittings and accessories, 3.5" Height, 6" Length, 6" Width, 4.70lbs, Steel, Square post base, centered offset, Post base for B22-2PL, Electro-plated

Manufacturer Resources

Product Specs

Certifications:
Not Applicable
For Channel Type:
Post base for B22-2PL
Product Height:
3.5 in
Product Length Depth:
6 in
Product Weight:
4.7 lb
Product Width:
6 in
Department:
Electrical
Product Type:
Square post base, centered offset
Product Finish:
Electro-plated
Product Details:
Square post base, centered offset
Product Material:
Steel
Product Length:
6 in

B-LINE B281MZN – Frequently Asked Questions

1) What strut does the B-Line B281MZN post base fit?
The B281MZN is a square post base made for B22-2PL strut, which is Eaton B-Line's back-to-back double channel post. If you are standing up a different channel profile, this is not the base for it, since the bolt pattern and throat are specific to B22-2PL.
2) Can the B-Line B281MZN post base be used outdoors or in a wash-down area?
It is steel with an electro-plated finish. Electroplated zinc is a thin sacrificial coating intended for dry interior service, so it holds up indoors but will corrode in exterior, damp, or wash-down locations. For those, specify a hot-dip galvanized or stainless post base instead.
3) What does "centered offset" mean on the B-Line B281MZN square post base?
Centered offset means the strut socket sits centered on the 6 x 6 inch plate but is stepped, or offset, off the plate face rather than sitting flush with it. Practically, the post lands in the middle of the base footprint, so anchor holes fall symmetrically around the strut instead of all to one side. If your layout needs the post pulled to one edge of the plate, a centered offset base is the wrong choice.
4) How much floor space does the B281MZN post base take up, and how tall does it sit?
The base plate footprint is 6 by 6 inches and the fitting stands 3.5 inches high. Allow for that 3.5 inches when you set your post cut length, because it adds to the overall height of the assembly above the slab.
5) Do anchors or hardware come with the B281MZN post base?
The B281MZN is supplied as the post base fitting itself. Concrete anchors or floor bolts, and the channel nuts or bolts that fasten the B22-2PL post into the socket, are ordered separately and sized to your slab and load.
6) What part number should I order for a centered offset square post base for B22-2PL strut?
Order Eaton B-Line B281MZN. That is the manufacturer part number for the electro-plated steel square post base, centered offset, made for B22-2PL channel.
7) Is the B281MZN strut post base heavy enough to need two hands to set?
It weighs 4.7 pounds, so it is a one-hand lift but noticeably heavier than a typical strut clip or bracket. That weight is a fair indicator of plate thickness on a steel post base intended to carry a double-channel post.
8) Does the B281MZN post base carry a listing or certification for electrical work?
No certification is claimed for this post base; the data lists certifications as Not Applicable. It is a structural strut fitting, not an electrically rated device, so if your spec calls for a listed component, this is not the item that satisfies it.
How fast can I get the B-LINE B281MZN 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 B281MZN come with a warranty?
Absolutely. The B-LINE B281MZN 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 B281MZN?
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 B281MZN 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.