Deltana 178UST Universal Strike, 1-7/8" x 1-1/2", Solid Brass

The 178UST is the strike that receives a surface bolt. It is the mating plate you mortise or surface-mount on the jamb, head, or threshold so the bolt rod has something to drop into. It is not a latch strike for a knob or lever set, and it is not a deadbolt strike. If you are replacing the strike for a deadbolt, a deadbolt strike plate such as the Emtek 83223 or the Kwikset 80318 full round adjustable strike is the part you want instead.

It measures 1-7/8 x 1-1/2 inches. That is a small footprint, so it lands on a standard 4-9/16 inch jamb or a stop with room to spare, and you can mount it on the head or the sill for a top or bottom surface bolt without eating the whole face. Lay it on the jamb first, mark it, and mortise flush so the bolt does not ride on the plate edge.

Only if the bolt throws into a shallow pocket rather than a deep box. The 178UST is a flat solid brass strike plate at 1-7/8 x 1-1/2 inches, so it covers and reinforces the hole you drill in the jamb but it does not carry an integral cup the way a dust box does. If you need the enclosed pocket, a strike box such as the Kwikset 81640 or the Kwikset 81231-001 metal strike dust box is the different part, though those are deadbolt strike parts rather than surface bolt strikes.

No. The 178UST is a surface bolt strike and it will not take a mortise lock latch or auxiliary bolt. For a hollow metal frame prepped to the European standard, the Codelocks ASA strike plate in stainless steel is the ASA-format part. For a residential deadbolt in a wood jamb where the bore is off, the Kwikset 81825 six way adjustable deadlatch gives you movement to chase the bolt.

They catch different things. The Deltana 178UST is a universal strike sized 1-7/8 inches by 1-1/2 inches in solid brass, intended for use with surface bolts, so it receives the rod of a surface-mounted bolt. The Emtek 83223 is a standard deadbolt strike plate with square corners, made to receive a deadbolt bolt at the lock prep. If the opening has a surface bolt at the head or sill, the 178UST is the matching part; if it has a bored deadbolt, the 83223 is the one that lines up with that prep.

The Deltana 178UST is a fixed universal strike at 1-7/8 inches by 1-1/2 inches, so its opening lands where the plate is mortised. When the bolt and the jamb prep do not agree, the Kwikset 80318 full round adjustable strike and the Kwikset 81825 six way adjustable deadlatch are both catalogued as adjustable deadbolt strike plates and give a range of travel to bring the catch to the bolt. Both are deadbolt strikes, so that route applies to a bored deadbolt rather than a surface bolt opening.

Solid brass, not a plated steel stamping. The substrate is brass under every finish offered, which is why it holds up in exterior and coastal openings where a plated steel strike blisters and rusts around the screw heads. It also means you can file the opening slightly to true up a bolt that sits a hair off without exposing a different base metal.

Nine finishes: polished brass, PVD polished brass, antique brass, oil rubbed bronze, brushed nickel, antique nickel, polished chrome, brushed chrome, and paint black. If you are matching an existing set of surface bolts, PVD polished brass is the one to pick for exterior doors, since PVD holds its color where standard lacquered polished brass will weather. For a fleet of units where the hardware is already dark, oil rubbed bronze or paint black are the matches.

One per bolt. The 178UST is sold each, so a door with a top and bottom surface bolt needs two, and a pair of inactive leaves with bolts top and bottom needs four. Buy them in the same finish batch if appearance matters, since brass finishes can shift slightly between production runs.

Universal here means the plate is not cut for one specific bolt model. It is a plain solid brass strike at 1-7/8 x 1-1/2 inches that you mortise where the rod lands, so it works with a surface bolt whose rod diameter clears the opening. Set the bolt first, mark where the rod actually strikes, then locate the plate to that mark rather than to a dimension off a drawing.

An ASA prep is a specific jamb cutout and wants a strike made to that pattern. The Codelocks ASA strike plate is built to the ASA series pattern in a stainless steel finish and is the part that matches that prep. The Deltana 178UST is a universal strike at 1-7/8 inches by 1-1/2 inches in solid brass for use with surface bolts, which is a smaller face than an ASA plate and a different application.

The Deltana 178UST is solid brass and comes in PVD polished brass, polished brass, antique brass, oil rubbed bronze, brushed nickel, antique nickel, polished chrome, brushed chrome, and paint black, so a whole run of surface bolt openings can be matched to the rest of the trim. Among the comparable strikes, the Codelocks ASA strike plate is offered in a stainless steel finish. Where the strike is visible on the jamb and has to read with the lever or bolt beside it, the brass body and finish range of the 178UST is what carries the match.

Not reliably. A deadbolt strike such as the Emtek 83223 standard deadbolt strike plate or the Kwikset 80318 full round adjustable strike is shaped for a deadbolt bolt entering the jamb face at the lock height. A surface bolt sends a rod into the head or the sill, and the Deltana 178UST is the universal strike made for that, at 1-7/8 inches by 1-1/2 inches in solid brass. Substituting a deadbolt strike usually means the opening and the plate outline do not match the rod and the mortise you have.

Deltana lists the 178UST as commercial. For a property manager or MRO buyer standardizing surface bolt hardware across a building, that means it is the same part you can spec on unit entry doors, storage rooms, and utility openings rather than carrying a separate residential strike.