B-Line B293A-12ZN Eaton series strut fittings and accessories, 3.5" Height, 12" Length, 1.62" Width, 2.52lbs, Steel, Number of mounting holes (1) 9/16 in diameter (vertical), Bracket, opening downward, Uniform load capacity 600, Electro-plated

It's a 12 inch steel strut bracket with the channel opening facing downward, part of the Eaton B-Line strut fittings line. Overall it measures 3.5 inches height, 12 inches length, 1.62 inches width, and weighs 2.52 lb. The downward channel orientation matters on install: you mount it so the open slot faces the floor, which lets you drop channel nuts in from below to hang pipe, conduit, or trapeze runs under the bracket.

There is one mounting hole, 9/16 inch in diameter, oriented vertically. That clears a 1/2 inch bolt or threaded rod with room to spare, so a 1/2 inch wedge anchor, drop-in anchor, or 1/2-13 rod is the usual pairing. Hardware is not part of the bracket, so order the anchor, nut, and washer separately.

Rated for a 600 uniform load. Treat that as the distributed limit across the 12 inch bracket, not a point load hung off the free end, and derate for your own safety factor the way the job spec calls for.

The B293A-12ZN carries an electro-plated zinc finish, which is a dry indoor finish. It holds up fine in conditioned mechanical rooms, electrical rooms, and above ceilings. For exterior runs, parking structures, wash-down areas, or anywhere with regular moisture, step up to a hot-dip galvanized or stainless strut fitting instead; electroplate will bloom white rust in those conditions.

That's what it's built for. With the channel opening down, you bolt the bracket back through its single 9/16 inch hole to the wall or to an existing strut run, then set channel nuts into the open slot and clamp conduit, pipe, or cable tray beneath it. The 12 inch length gives you about a foot of standoff to work with.

Order Eaton B-Line part number B293A-12ZN. The -12 is the 12 inch length and the ZN suffix is the electro-plated zinc finish. It ships as a single bracket, no fasteners included.

No listed certification applies to this bracket; the record shows certifications as not applicable. Spec it on its published mechanical data instead: steel construction, 600 uniform load rating, and 3.5 x 12 x 1.62 inch dimensions.