Deltana DSB4NB 4" x 4" Square Hinges, Ball Bearings, NRP (Pair)

The DSB4NB is a 4" x 4" full mortise hinge with square corners, so it drops into an existing square-cut 4-inch mortise without re-routing. If your current hinges have rounded corners, the pocket won't match and you'd want a radius-corner hinge instead. Leaf thickness is .129, and it ships as a pair.

NRP is a non-removable pin. The DSB4NB has one, which means the pin can't be pulled out with the door closed, so nobody can lift the door off its hinges from the outside. That matters on any out-swinging door where the barrel is exposed to the exterior or a public corridor. On an in-swinging door with the hinges on the secure side, a standard pin would do the same job.

Residential. The DSB4NB is a solid brass ball bearing hinge classified for residential use, so it suits house entries, apartment unit doors and interior doors. For a commercial opening in heavy traffic, look at a steel commercial ball bearing hinge such as the Orca Hardware 3535 Series 4-1/2" x 4-1/2" square corner ball bearing, or the Don-Jo HWBB84545 heavy weight 4-1/2" x 4-1/2" mortise hinge.

The DSB4NB is sold by the pair, so a standard door hung on three hinges takes two orders (you'll have one spare leaf pair). Mounting screws are #12 x 1-1/4" wood screws; there is no machine screw pack, so these go into a wood jamb, not a hollow metal frame.

For residential unit doors, yes, and the NRP pin is the reason to standardize on it where doors swing out into a corridor. The 4" x 4" square corner size is the common residential template, so it repeats across openings cleanly. If some of those doors are commercial-rated fire or stair doors, the residential classification here means they need a different hinge, such as the Hager BB1168 non-removable pin full mortise ball bearing heavy duty hinge.

Not without cutting. A 4" x 4" leaf is taller and wider than a 3-1/2 inch mortise, so the pocket in both the door and the jamb has to be enlarged. If you want a straight drop-in on a 3-1/2 inch square corner prep, the Emtek 94013 heavy duty ball bearing pair and the Schlage Residential S3P1010 square corner mortise hinges are both 3-1/2" x 3-1/2" square corner.

The Deltana DSB4NB is a 4 inch by 4 inch full mortise ball bearing hinge with square corners and a non-removable pin. The nearest match on size, corner and bearing is the Delaney CH401X 4 inch by 4 inch commercial ball bearing hinge with square corner, which shares the 4 x 4 size, the square corner and the ball bearing action. The Delaney is a commercial ball bearing hinge, while the DSB4NB is solid brass with a non-removable pin and is offered in fifteen finishes including Oil Rubbed Bronze, Polished Chrome and Brushed Nickel.

Deltana's DSB4NB carries the non-removable pin but only in the 4 inch by 4 inch size. For a wider door leaf that still needs the NRP security feature and ball bearings, the Hager BB1168 is a non-removable pin full mortise ball bearing hinge rated heavy duty. The Deltana is solid brass and residential rated; the Hager BB1168 is the heavy duty version of the same NRP ball bearing arrangement.

No. The Deltana DSB4NB is 4 inch by 4 inch, and a 4-1/2 inch hinge needs a deeper and longer mortise in both the door edge and the frame. Hinges such as the Orca Hardware 3535 Series 4-1/2 inch by 4-1/2 inch square corner ball bearing commercial hinge and the Don-Jo HWBB74545 heavy weight full mortise ball bearing hinge at 4-1/2 inch by 4-1/2 inch share the ball bearing action and full mortise mounting but not the leaf size. Match the existing mortise, or plan to rout the jamb and door.

The Deltana DSB4NB is a residential rated solid brass hinge in 4 inch by 4 inch. For heavier commercial leaves, the Ives 3CB1HW is a steel heavy weight concealed bearing full mortise hinge with 3 knuckles rated heavy duty, and the Don-Jo HWBB84545 is a heavy weight full mortise ball bearing hinge at 4-1/2 inch by 4-1/2 inch, also heavy duty. Both use a larger or heavier-weight leaf than the 4 inch brass hinge and require the corresponding mortise.

No. The Deltana DSB4NB is a plain full mortise ball bearing hinge with a non-removable pin and no spring or wiring. For a self-closing opening, the Stanley Security 2060R is a full mortise square corner spring hinge at 4.5 inch by 4.5 inch on a ferrous steel base, rated heavy duty. To run power through the hinge, the Command Access ETH-CB70 is an energy transfer hinge with a 3 knuckle standard weight steel base, medium duty, and the Command Access ETM-CB70 adds door position sensing. Those are 4-1/2 inch class hinges and take a different mortise than the 4 inch DSB4NB.

The Deltana DSB4NB mounts full mortise, meaning both leaves are let into the door and the frame. Where the frame cannot be mortised, the Hager 1129 is a half mortise plain bearing commercial hinge in 4-1/2 inch standard weight steel, and the Hager 990 STEEL is a full surface hinge at 3 inch by 4 inch with a welded tip, rated heavy duty. Half mortise and full surface hinges attach to the face of the frame rather than into a routed pocket.

They do. The DSB4NB uses ball bearings between the knuckles, which carry the weight of a solid-core or heavy exterior door and keep it from sagging or squeaking the way a plain bearing hinge will. If the door is a hollow-core interior slab, a plain bearing hinge like the Orca 4040 Series 4" x 4" square corner or the Emtek 91013 residential plain bearing pair is enough.

Fifteen finishes: PVD Polished Brass, Polished Brass, Antique Brass, Bronze Anodized, Oil Rubbed Bronze, Bronze Dark, Bronze Medium, White Light, White Medium, Paint Black, Rust, Brushed Nickel, Antique Nickel, Polished Chrome and Brushed Chrome. All are on solid brass, and the same finish family runs across Deltana's other brass trim, so hinges, levers and stops can be matched on one opening.

Brass is the reason to pick these. The DSB4NB is solid brass through the leaf, not plated steel, so the leaves won't rust out where a painted or plated steel hinge will in salt air or a wet climate. Plated steel residential hinges such as the Emtek 94013 heavy duty ball bearing pair are a different construction, and that plating is what gives up first outdoors.

No handing to specify. The DSB4NB is a symmetrical full mortise butt hinge, so the same pair works on a left or right hand door; you just flip it. Handing only comes into play on hinges built with a directional feature, like the Stanley CECB1900R54L electrified hinge, which is ordered left-handed.

No. The DSB4NB is a plain mechanical butt hinge with no wire path through it. For power transfer you need an electrified hinge, such as the Command Access ETH-BB68 energy transfer hinge or the BEST CECB179-12C full mortise concealed bearing electrified hinge with 12-wire quick connect. If you also want door position monitoring, the Command Access ETM-BB68 combines transfer with an integrated door position switch.

Ball bearings on the Deltana DSB4NB carry heavier or higher-cycle leaves. For a low traffic interior opening at the same 4 inch by 4 inch size with square corners, the Orca Hardware 4040 Series is a 4 inch by 4 inch square corner plain bearing commercial hinge, medium duty. If a radius corner mortise suits the existing door prep better, the Orca 4014 Series is a 4 inch by 4 inch with a 1/4 inch radius corner, also plain bearing and medium duty. Plain bearing hinges have no bearing race between the knuckles, so the pin rides directly in the knuckle.

Both are 4 inch by 4 inch residential hinges sold as a pair. The Delaney RH45xx is a bulk exterior residential hinge with a 5/8 inch radius corner, so it drops into a factory radius-corner mortise. The Deltana DSB4NB has square corners, ball bearings, a non-removable pin and a solid brass body. Radius and square corner preps are not interchangeable without reworking the mortise.

Yes. Deltana's solid brass hinges accept decorative finials in place of the standard tips, which is how you dress up a visible hinge on a front entry or a period interior door. Note the DSB4NB has a non-removable pin, so plan the tip choice at the time of order rather than swapping it later.

For a 3-1/2 inch door prep with the same square corner appearance, 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, the Emtek 92013 is the heavy duty plain bearing version in the same size and corner, and the Schlage Residential S3P1010 is a 3.5 inch by 3.5 inch square corner plain bearing mortise hinge sold in packs of three, rated medium duty. The Deltana DSB4NB keeps the square corner but at 4 inch by 4 inch in solid brass with ball bearings.