Eaton B-Line series beam fasteners, Beams, Flange, 1" Height, 1" Length, 1" Width, 0.065lbs, 20 x 0.38" ked stud, Universal beam fasteners, .31" Min mount size, .5" Max mount size
Manufacturer Resources
Product Specs
- Application:
- Suspend boxes or fixtures
- Certifications:
- UL/CUL listed
- Mounting Dimensions Max:
- 0.5
- Mounting Dimensions Min:
- 0.31
- Mounting Method:
- Flange
- Product Category:
- Beams
- Product Height:
- 1 in
- Product Length Depth:
- 1 in
- Product Weight:
- .065 lb
- Product Width:
- 1 in
- Department:
- Electrical
- Product Group:
- Fasteners
- Product Subgroup:
- Other Fasteners
- Product Type:
- Universal beam fasteners
- Product Size:
- 20 x 0.38 inch ked stud
- Product Details:
- Universal beam fasteners
- Product Length:
- 1 in
- Product Length:
- 1 in
B-LINE BU-5-8-S – Frequently Asked Questions
1) What is the stud size on the B-Line BU-5-8-S beam clamp, and will a standard fixture hanger thread onto it?
It carries a 1/4-20 style threaded stud at 20 threads per inch by 0.38 inch. That is the stud a suspended box, fixture hanger, or rod coupling threads onto, so match your nut or coupling to 20 TPI before you hang anything off it.
2) Can I use a B-Line beam fastener to hang an electrical box off structural steel instead of drilling the beam?
That is exactly the job. The BU-5-8-S is a flange-mount clamp used to suspend boxes or fixtures from a beam without welding or drilling the structure. It clips onto the flange edge and gives you a threaded stud to hang from.
3) Is the B-Line BU-5-8-S beam fastener UL listed for electrical work?
Yes, the BU-5-8-S is UL/CUL listed, which covers it for use in both US and Canadian electrical installations. That matters on inspected commercial and institutional jobs where every support component in the circuit path has to be listed.
4) How much room does the B-Line BU-5-8-S take up on the beam flange?
It's a compact clamp at 1 inch height by 1 inch length by 1 inch width, weighing 0.065 lb. That footprint matters when you're running fasteners at close spacing along a flange or working in a tight ceiling cavity above a hard lid.
5) Do I need a separate stud or bolt to use this Eaton B-Line beam fastener?
No separate stud is needed. The BU-5-8-S ships as a universal beam fastener with the 20 x 0.38 inch threaded stud integral to it. What you supply is whatever hangs off the stud, a nut, fixture hanger, or box stud adapter.
6) When ordering B-Line beam clamps, what do I need to check before I pick the model?
Two things decide it. First, measure the flange thickness at the point you're mounting, the BU-5-8-S covers 0.31 to 0.5 inch. Second, confirm the load you're hanging threads onto a 20 TPI stud. Get either wrong and the clamp either won't seat on the steel or won't accept your hanger. The ordering part number is BU-5-8-S.
How fast can I get the B-LINE BU-5-8-S 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 BU-5-8-S come with a warranty?
Absolutely. The B-LINE BU-5-8-S 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 BU-5-8-S?
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 BU-5-8-S 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.