B-Line B281FLSS4 Eaton series ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$734.90
B-Line B281FLSS4 Eaton series strut fittings and accessories, 3.5" Height, 8" Length, 3" Width, 3.2lbs, Steel, Rectangular post base, flush to side, Fits channel type B22A, B, C, Stainless steel type 304

B-Line B281FLSS4 Eaton series strut fittings and accessories, 3.5" Height, 8" Length, 3" Width, 3.2lbs, Steel, Rectangular post base, flush to side, Fits channel type B22A, B, C, Stainless steel type 304

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Model: B281FLSS4
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$734.90
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Eaton B-Line series strut fittings and accessories, 3.5" Height, 8" Length, 3" Width, 3.2lbs, Steel, Rectangular post base, flush to side, Fits channel type B22A, B, C, Stainless steel type 304

Manufacturer Resources

Product Specs

Certifications:
Not Applicable
For Channel Type:
Fits channel type B22A, B, C
Product Height:
3.5 in
Product Length Depth:
8 in
Product Weight:
3.2 lb
Product Width:
3 in
Department:
Electrical
Product Type:
Rectangular post base, flush to side
Product Finish:
Stainless steel type 304
Product Details:
Rectangular post base, flush to side
Product Material:
Steel

B-LINE B281FLSS4 – Frequently Asked Questions

1) Is the B281FLSS4 base stainless steel or plated steel?
Material is steel with a type 304 stainless steel finish designation, which is what you want for exterior posts, wash-down areas, and food or pharma facilities where a plain electro-galvanized base would rust at the anchor holes.
2) What does "flush to side" mean on this B-Line post base?
It means the strut sits flush with one side edge of the rectangular base plate instead of centered on it. That lets you set a strut post tight against a wall, curb, or equipment pad face while still getting the full anchor pattern on the open side. If you need the post centered on the plate, order a centered rectangular base instead.
3) What are the dimensions and weight of the B281FLSS4 post base?
It measures 8 inches (length/depth), 3 inches (width) and 3.5 inches (height), and weighs 3.2 lb. The 8 by 3 inch footprint is what you need to check against your available pad or curb area, and against the anchor spacing you can drill without hitting rebar or edge-of-slab.
4) Do anchors and strut bolts come with the B281FLSS4?
No. The B281FLSS4 is the base fitting only. You supply the concrete or floor anchors sized for your slab, plus the channel nuts and bolts to fasten the strut into the base. For a stainless installation, match the fasteners to the 304 stainless finish so you don't set up galvanic corrosion at the joint.
5) What is the exact part number to order for this Eaton B-Line post base?
Order it as B-Line B281FLSS4. That single MPN covers the type 304 stainless version of the flush-to-side rectangular post base for B22A, B and C channel.
6) Can I use the B281FLSS4 for outdoor rooftop or exterior equipment supports?
Yes, the 304 stainless construction suits exterior and rooftop strut posts where carbon steel bases corrode. Height is 3.5 inches, so account for that added elevation when you set the finished height of the strut post above the roof or pad.
How fast can I get the B-LINE B281FLSS4 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 B281FLSS4 come with a warranty?
Absolutely. The B-LINE B281FLSS4 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 B281FLSS4?
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 B281FLSS4 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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