B-Line B22SHA-240SS4 Eaton series strut back-to-back welded channel, 1.62" channel height, 240" channel length, 1.62" channel width, Steel, 12 Gauge, SHA hole pattern, B22 channel type, Stainless steel type 304

It is Type 304 stainless steel, not a plated or painted finish over carbon steel. That makes it suitable for wash-down areas, food processing, water treatment, coastal exteriors, and other corrosive environments where galvanized strut would rust at the cut ends. Pair it with stainless nuts, bolts, and fittings; mixing in plain or zinc hardware puts the weak link back into the assembly.

Yes. The channel faces are the 1.62 inch (1-5/8 inch) profile, which is the standard strut opening, so spring nuts, channel nuts, clamps, braces, and post bases built for 1-5/8 inch strut engage the slot normally. Specify the stainless versions of those fittings to match the Type 304 channel.

B22 is a back-to-back welded channel: two strut sections welded spine to spine to form a closed box profile, 1.62 by 1.62 inches. That doubles the load-carrying section over a single 1-5/8 inch channel and gives you slots facing two opposite directions, so you can attach fittings on both faces. Use it for trapeze hanger beams, long spans, and posts where a single channel would deflect. For short pipe or conduit clamps on a wall, single channel is the cheaper and lighter choice.

SHA is B-Line's designation for a short-slot hole pattern punched in the channel back. It gives you fixed-point attachment through the back of the strut for bolting to structure, wall, or another member, in addition to the continuous slot on the open faces. If your detail calls for solid-back channel with no back holes, SHA is not that part.

12 gauge is the standard structural strut thickness B-Line uses for load-bearing channel, and in the B22 back-to-back form you get two 12 gauge sections welded together, which is the configuration normally specified for trapeze beams and long unsupported spans. Size the actual span and load off the engineer's or manufacturer's load table for B22, not off gauge alone.

The manufacturer part number is B22SHA-240SS4, from the Eaton B-Line strut line. Read it as B22 channel type, SHA hole pattern, 240 inch length, SS4 for Type 304 stainless. Quoting the full string matters, because the same B22SHA profile is sold in other lengths and other material codes.

No. It ships as bare channel only, a 240 inch length of B22 back-to-back welded strut. Channel nuts, threaded rod, beam clamps, post bases, end caps, and pipe clamps are all separate line items, and on a stainless run you want those in stainless too.