B-Line Eaton series runway accessories, Provides 2-1⁄2 clearance, Includes stand-off supports and 3⁄8-16 hardware, Runway stand-off kit, ASTM A36 stru

The Eaton B-Line SB21092YZ is a stand-off kit that holds cable runway off the wall or supporting surface, giving 2-1/2 inches of clearance behind the runway. That gap is what lets you drop cable behind the rack, run ground bar or conduit, and get a wrench on the hardware instead of working flush against the wall.

Hardware is in the kit. It ships with the stand-off supports plus 3/8-16 hardware, so you are not sourcing bolts separately to attach the stand-off to the runway. What the kit does not cover is the anchor into your wall or structure, since that depends on whether you are landing in concrete, block, or steel.

3/8-16 UNC. That is the standard thread across B-Line runway hardware, so if you are adding stand-offs to an existing run the fasteners match what is already on the runway splices and supports.

The stand-offs are ASTM A36 structural steel with a yellow zinc plating. Zinc plating is a corrosion coating for indoor and sheltered use, which covers most data rooms, MDF/IDF closets, and unconditioned equipment rooms. For outdoor or wash-down environments you want hot dip galvanized or stainless runway hardware instead, not plated steel.

Yes, the SB21092YZ carries a UL Listing. For an institutional or government submittal that is usually the line item the reviewer is looking for on runway support accessories.

Two different jobs. A stand-off kit like the SB21092YZ spaces the runway off the wall by a fixed 2-1/2 inches while the wall itself carries the load, which is what you want on a continuous run down a corridor or around a room perimeter. A wall angle or triangular support bracket is what you use to cantilever runway out from the wall with no other support, typically at the end of a run or where the runway leaves the rack line. If your runway is already supported by racks or threaded rod and you just need it held off the wall surface, the stand-off is the part.

Each kit measures 4.5 by 2 by 1.25 inches and weighs 2.5 lb. Small enough that a handful ride in a tool bag, heavy enough that it is A36 structural steel rather than formed sheet.

The SB21092YZ is sold as a single stand-off kit, so quantity is driven by your support spacing, not by the kit. Count one per wall attachment point along the run and order to that number. If you are standardizing a building, ordering by the full run length up front avoids mixing plating lots and getting a visible finish difference between stand-offs.