Deltana DSB45NB 4-1/2" x 4-1/2" Square Hinges, Ball Bearings, NRP (Pair)

NRP stands for non-removable pin. The DSB45NB is built with a non-removable pin so the hinge pin can't be driven out from the hinge side of the opening. That matters on any door that swings out, where the barrel and pin sit on the exterior: without NRP, someone can pull the pin and lift the door off. On an inswing door with the hinges inside, NRP is optional but does no harm.

Deltana lists the DSB45NB as residential. It's a solid brass, ball bearing, full mortise hinge in a 4-1/2 by 4-1/2 inch size, which suits heavy residential entry doors and interior doors in homes and light multi-family. For a commercial opening under an architectural spec, look at a steel ball bearing hinge like the Don-Jo HWBB84545 in the same 4-1/2 by 4-1/2 size, or the Hager BB1168 NRP, both listed as heavy duty.

It will if your current hinges are 4-1/2 by 4-1/2 inches with square corners. The DSB45NB is a square corner hinge, so it needs a square-cut mortise. If your door and frame were routed with a hinge template that leaves a radius corner (commonly 1/4 inch or 5/8 inch), the square leaf won't seat without chiseling the corners out. Leaf thickness is .134, so check that against what's coming off the door.

The Deltana DSB45NB is a 4-1/2 inch by 4-1/2 inch square corner solid brass ball bearing hinge sold as a pair with a non-removable pin. The Orca Hardware 3535 Series is a 4-1/2 inch by 4-1/2 inch square corner ball bearing commercial hinge rated medium duty, so it matches the size, corner style, and bearing type while using a commercial steel build. For a heavier steel option at the same size, the Don-Jo HWBB74545 is a heavy weight full mortise ball bearing hinge in 4-1/2 inch by 4-1/2 inch, offered in satin chrome.

The DSB45NB is a 4-1/2 inch by 4-1/2 inch hinge and will not drop into a 4 inch mortise without recutting the jamb. For a 4 inch by 4 inch square corner pocket, the Orca Hardware 4040 Series is a 4 inch by 4 inch square corner plain bearing commercial hinge in medium duty, and the Delaney CH401X is a 4 inch by 4 inch commercial ball bearing hinge with square corners if you want to keep the bearing knuckle. Measure the existing leaf before ordering, since corner style has to match the mortise as well as the size.

The DSB45NB is sold as a pair, so one order covers two hinges. A standard interior door usually runs on three hinges and a heavy or tall exterior door often takes four, so plan on two units for a three-hinge door (you'll have a spare leaf pair) or two units for a four-hinge door exactly.

Screws are specified with the hinge: #12 x 1-1/4 inch wood screws for wood doors and jambs, and #12 x 1/2 inch machine screws for metal frames. If you're hanging a heavy solid core or exterior door, a lot of installers swap at least one screw per leaf on the jamb side for a 3 inch screw that reaches the framing stud behind the jamb.

Ball bearings carry the door's weight on races between the knuckles instead of metal rubbing directly on metal, so a heavy or frequently used door swings without the knuckle wear and squeak that shows up on plain bearing hinges. The DSB45NB is a ball bearing hinge. If the door is light and low-traffic, a plain bearing hinge such as the Emtek 92013 or the Orca Hardware 4040 Series square corner is the simpler choice.

No handing to specify. The DSB45NB is a full mortise butt hinge with a non-removable pin, and butt hinges of this type are non-handed, so the same pair works on a left or right hand door. What you do specify is the finish, and you pick that once and repeat it across the openings so every door matches.

Only where the door does not need the bearing. The DSB45NB uses ball bearings in the knuckle. Plain bearing alternatives include the Orca Hardware 4040 Series 4 inch by 4 inch square corner plain bearing commercial hinge and the Emtek 92013 heavy duty plain bearing hinges, sold as a pair in 3-1/2 inch by 3-1/2 inch with square corners in plated steel. Ball bearing knuckles are the usual choice for heavier doors or doors carrying a closer; plain bearing units suit lighter interior leaves. Note that neither of those plain bearing options matches the DSB45NB at 4-1/2 inch by 4-1/2 inch.

Several 4-1/2 inch hinges share the size but not the function. The Stanley Security 2060R at 4.5 inch by 4.5 inch is a full mortise square corner spring hinge, so it self-closes the door rather than swinging free. The Stanley CECB1900R54L is a concealed bearing, concealed conductor architectural hinge at 4-1/2 inch by 4-1/2 inch, square corner, left-handed, 4-wire, intended for electrified openings and handed. The McKinney SQ3331 is a 4-1/2 inch by 4-1/2 inch square barrel 2-knuckle decorative hinge with a different barrel profile. The Deltana DSB45NB is a standard full mortise ball bearing pair with a non-removable pin.

For interior leaves that do not need the brass body or the security pin of the Deltana DSB45NB, the Delaney RH35xx is a bulk steel residential interior hinge pair at 3-1/2 inch by 3-1/2 inch with a 5/8 inch radius corner, and the Emtek 91013 is a residential plain bearing hinge pair at 3-1/2 inch by 3-1/2 inch with square corners in plated steel. Both are smaller than the 4-1/2 inch by 4-1/2 inch Deltana and use a standard removable pin rather than the non-removable pin, so they suit inswing interior doors rather than exposed exterior hinges.

The Deltana DSB45NB is a mechanical hinge with no wiring provision. If you need power through the hinge to an electric strike or electrified lock, the Command Access ETH-BB68 is an energy transfer hinge with a 5-knuckle heavy duty steel base, and the ETH-CB70 is a 3-knuckle standard weight steel base energy transfer hinge in medium duty. The BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect. If you also need door position monitoring, the Command Access ETM-BB68 adds an integrated door position switch.

The Deltana DSB45NB uses visible ball bearings between the knuckles in a solid brass body with square corners. The Ives 3CB1 is a steel 3-knuckle concealed bearing full mortise hinge rated medium duty, where the bearing is hidden inside the knuckle for a cleaner barrel line, and the 3CB1HW is the heavy weight concealed bearing version with 3 knuckles. The Hager 920 is a full mortise concealed bearing hinge with 2-knuckle steel construction in medium duty. All are full mortise like the Deltana; the choice comes down to barrel appearance, knuckle count, and whether you want brass or steel.

The non-removable pin on the Deltana DSB45NB defeats pin removal on a solid brass residential hinge, but detention openings use a different class of hardware. The BEST BB855 is a heavy-duty steel double weight concealed ball bearing prison hinge, the Stanley BB855 is a double weight prison hinge furnished with no holes and not swaged at 5 inch by 6 inch, and the Hager 990 STEEL is a full surface prison hinge at 3 inch by 4 inch with a welded tip in heavy duty. Those are the ones to look at for correctional or high-abuse work.

Seventeen finishes: PVD Polished Brass, Polished Brass, Unlacquered Brass, Antique Brass, Oil Rubbed Bronze, Bronze Dark, Bronze Medium, Polished Nickel, Brushed Nickel, Antique Nickel, Polished Chrome, Brushed Chrome, White Light, White Medium, White Dark, Paint Black, and Rust. The PVD Polished Brass is the one to specify if you want brass that won't need polishing; Unlacquered Brass is the one that will patina over time, which is what you want when you're matching older hardware.

Yes. Deltana's solid brass hinges accept decorative finials, which replace the plain tips at the top and bottom of the barrel and are ordered separately. Note the pin on the DSB45NB is non-removable, so the finials dress the hinge; they do not turn it into a loose-pin hinge.

The Deltana DSB45NB is sold by the pair, so a three-hinge door takes two units. If you want a three-hinge set in one purchase, the Ives 1010RP is a steel plain bearing residential hinge with square corners sold as a set of 3 in medium duty, and the Schlage Residential S3P1010 is a 3.5 inch by 3.5 inch square corner plain bearing mortise hinge in a pack of 3. Both are 3-1/2 inch class plain bearing hinges rather than the 4-1/2 inch brass ball bearing build of the Deltana.