B-Line Eaton series strut channel, 1.62" channel height, 240" channel length, 1.62" channel width, Steel, 12 Gauge, S hole pattern, B22 channel type,

Yes. The B-Line B22 channel measures 1.62 inches high by 1.62 inches wide, which is the 1-5/8 by 1-5/8 inch profile most trades just call standard strut. Fittings, nuts, and clamps built for 1-5/8 inch channel land on it.

Pre-galvanized steel is a mill zinc coating meant for indoor and dry or damp interior use, mechanical rooms, above ceilings, and interior electrical rooms. For direct weather exposure, wash-down areas, or corrosive environments, step up to a hot-dip galvanized or stainless channel instead. The cut ends of pre-galv strut are bare steel and will rust first.

S is the standard slotted back pattern, so the channel is pre-punched along its back for through-bolting to structure or joining channel to channel. You do not have to drill it in the field. If you want an unpunched solid back or a different punch spacing, that is a different channel suffix, not this one.

Yes, strut is routinely cut to length with a band saw, chop saw with a metal blade, or portaband. Because the coating is pre-galvanized rather than hot-dip, the fresh cut leaves bare steel, so hit the ends with a cold galvanizing compound or an end cap in any location that sees moisture.