B-Line Eaton series Type 1 junction boxes, 16" height, 4" length, 16" width, 1, Screw cover, SC enclosure, Surface mounted, Small single door, 7 side

No. The 16164 SC carries a NEMA Type 1 rating, which is indoor use only, protecting against dust and incidental contact with the enclosed wiring. It gives no protection against falling water, hosedown, oil, or corrosive atmospheres. For a wet exterior wall, a damp mechanical room with dripping pipes, or a kitchen washdown, you need a Type 3R, 4, or 4X enclosure instead.

It is a 16 x 16 x 4 inch box: 16 inch height, 16 inch width, and 4 inch length/depth. That 4 inch depth is the number to watch, since it sets how much room you have behind the cover for wire bending, splice caps, or a small terminal strip. The box weighs 13 lb bare, which matters when you are picking anchors for the thru-hole surface mounting.

Knockouts are already provided: 7 on the sides, 7 on the top, and 7 on the bottom. So you can land conduit from three directions without a hole saw or a punch set. If your run needs an entry where there is no knockout, you will be drilling or punching the 16 gauge carbon steel yourself.

A screw cover box like the 16164 SC is the right choice for a pull or splice point you rarely open. The cover fastens with plated screws and has keyhole slots, so you can back the screws out part way and lift the cover off without chasing loose hardware. If it is a panel an electrician or technician opens routinely to work live equipment, a hinged door enclosure is the better pick, because a screw cover has to come fully off every time.

Surface mount only. The box has thru holes in the back pan, so it fastens flat against a wall, a strut rack, or a plywood backboard with your own bolts or lags. There is no flush trim or flange for recessing into drywall. Fasteners and anchors are not part of the box, so pick them for the substrate and for the 13 lb bare weight plus whatever wiring you land in it.

Painted carbon steel in ANSI 61 grey, which is the standard grey used across most commercial switchgear, panelboards, and control enclosures. If your existing gear is ANSI 61, this box will read as a match on the wall. The screws are plated.

The body is 16 gauge carbon steel, which is the usual weight for Type 1 screw cover boxes in this size class and stiff enough that a 16 x 16 inch cover holds its shape once the screws are run down. It also means you can drill or punch additional conduit entries with standard hand tools rather than needing to work heavy plate.