B-Line B54A-120SS4 Eaton series strut back-to-back welded channel, .81" channel height, 120" channel length, 1.62" channel width, Steel, 14 Gauge, B54 channel type, Stainless steel type 304

It is type 304 stainless steel, 14 gauge. The material is listed as steel with a type 304 stainless designation, so it is the grade you want for wet, washdown, coastal or corrosive environments where plain pre-galvanized strut rusts out at the cut ends.

No. The B54A-120SS4 is the bare 120 inch channel only. Nuts, springs, washers, fittings, end caps, and the threaded rod or anchors all get ordered separately. On a 304 stainless run, keep the fasteners and fittings stainless too, since mixing plain zinc hardware into a stainless assembly puts dissimilar metals in contact and defeats the reason you specified stainless.

Back-to-back welded channel gives you two open slot faces, one on each side, so you can hang or brace off both directions from a single member. The B54A is a pair of .81 inch tall B54 sections welded together into one 1.62 by .81 inch profile. If you only need to mount on one face, a single-channel strut is lighter and cheaper; you go back-to-back when you need opposing attachment or extra section stiffness on a longer span.

Eaton B-Line part number B54A-120SS4. The B54A is the back-to-back welded pair of B54 sections, 120 is the 120 inch length, and SS4 is the type 304 stainless material code. Use that full string on the PO so you do not get shipped a pre-galvanized or type 316 equivalent.

No listing or certification is carried on the B54A-120SS4 channel itself; certifications are marked Not Applicable for this item. It is a structural support channel, not a listed electrical device. If your submittal needs a listing, that requirement usually lands on the raceway, fitting or hanger assembly rather than on the strut stick.