Beam/Purlin Flange Clip

The size call-out is the flange thickness range the clip grips: the Steel City SSF-BF1/4 is the 1/4 inch version and the SSF-BF1/2 is the 1/2 inch version. Both are steel edge clips for beam and purlin flanges, and both carry the same 1/2 inch hole for hanging. Pick the one that matches the flange edge you're clipping to.

No drilling and no bolt through the steel. It's a hammer-on edge clip: you drive it onto the beam or purlin flange with a hammer and it holds by spring tension. That keeps the structural member untouched, which is why these are used for overhead runs where welding or drilling the steel isn't allowed.

Yes. It's covered under UL file E160899. That's the reference an inspector or institutional spec reviewer will want for overhead electrical support on a listed installation.

Hammer-on edge clips like the SSF-BF series are the fast choice for repetitive overhead work on bar joists, purlins, and beam flanges - one hammer strike per hanger, no tools, no set screw to torque. A bolted beam clamp is the better pick when the flange is thicker or out of the clip's grip range, when you need to remove and reposition the hanger later, or where the spec calls for a mechanically tightened attachment. Match the clip size, 1/4 inch or 1/2 inch, to the actual flange thickness.

They're packed 100 per inner carton, with 900 in the full outer case. For a large overhead conduit or lighting run that means ordering by the hundred rather than by the piece, which is how most MRO and contractor orders on these go.

It's a steel clip. Steel spring clips are standard for dry interior overhead work like warehouses, plants and parking structures. For wet, washdown or corrosive environments you'd want to move to a corrosion-resistant or stainless hanger instead, since a plain steel edge clip is not a marine or chemical-exposure part.