B-Line Eaton series fastener hardware and accessories, Heavy and medium duty all purpose anchor, Stainless steel,3⁄8" x 2-1⁄4", Anchors can be install

Yes. The AWA-37-225SS is built so the anchor can be installed through the fixture, so you can position the channel, bracket or box, drill through the mounting hole into the concrete, then drive the anchor and tighten. That saves the layout-and-remount step on overhead strut and conduit support work.

The B-Line AWA-37-225SS carries a UL Listing, which is what an inspector or institutional spec writer typically wants to see on anchors supporting electrical raceway, cable tray and enclosures.

No. A wedge anchor needs solid base material, it works by expanding a wedge against the wall of a drilled hole, so it belongs in poured concrete. For hollow block, brick or drywall use a toggle, sleeve anchor or a machine screw anchor sized for the wall, not the AWA-37-225SS.

For wet, washdown, coastal or corrosive areas, yes. The AWA-37-225SS is stainless steel, which is what you want anchoring strut, conduit racks or enclosures in parking garages, exterior walls, mechanical rooms and food-processing areas where a zinc-plated anchor will rust at the stud and bleed onto the concrete. Dry interior work doesn't need stainless, but mixing materials in a corrosive area is what causes the callback.