B-Line B42A-120GLV Eaton series strut back-to-back welded channel, 1" channel height, 120" channel length, 1.62" channel width, Steel, 12 Gauge, B42 channel type, Pre-galvanized

The B42A-120GLV is pre-galvanized steel, which covers indoor use and damp interior areas like mechanical rooms and parking structures. Pre-galvanized (mill galvanized) coating leaves the cut ends and the welds bare, so for direct weather exposure or corrosive environments you want a hot-dip galvanized or stainless strut instead.

Back-to-back welded channel like the B42A gives you two slots facing opposite directions in one factory-welded member, so you can hang trapeze from one side and mount conduit or equipment on the other without bolting two sticks together. It also stiffens the span for long trapeze runs and heavier loads. If you only need a single slot facing one way, a standard single channel is lighter, cheaper to handle and easier to cut.

Order it as Eaton B-Line B42A-120GLV. Reading the code: B42 is the channel type, 120 is the length in inches, and GLV is the pre-galvanized finish. If you need a different length or a hot-dip finish, the same B42A series carries other length and finish suffixes.

Yes. The B42A-120GLV is pre-galvanized, so cutting the 120 inch stick exposes bare steel at the cut. In damp or unheated spaces, brush on a cold galvanizing compound or zinc-rich primer at the cut and at any field welds. In dry conditioned interiors most specs let raw cuts go untreated.

The B42A-120GLV is a single configuration, one 120 inch back-to-back welded channel per part number, in pre-galvanized steel only. There is no length or finish choice under this number, so order the quantity of sticks you need for the run.