Deltana DSB35B-C 3-1/2" x 3-1/2" Square Hinge, Ball Bearings (Pair)

The DSB35B-C measures 3-1/2 by 3-1/2 inches with square corners, so it drops into an existing square corner mortise of the same size without recutting. If the mortise in your door or jamb has rounded corners (a 1/4 inch or 5/8 inch radius, which is common on prehung residential doors), the square corner plate will not seat and you would need a radius corner hinge instead.

The DSB35B-C uses ball bearings between the knuckles, which carry the door's weight on a rolling surface instead of metal sliding on metal. That means quieter operation and less wear on heavier or frequently used doors, such as a solid core entry or a bathroom door that gets cycled all day. Plain bearing hinges, like the Emtek 91013 at the same 3-1/2 by 3-1/2 inch square corner size, are the simpler option for light hollow core interior doors.

It is rated residential. For a commercial opening, especially one with a closer or a fire rated frame, go to a commercial ball bearing hinge such as the Orca Hardware 3535 Series 4-1/2 by 4-1/2 inch square corner ball bearing hinge or the Ives 3CB1HW heavy weight concealed bearing full mortise hinge. Apartment unit entry doors inside a multi-family building are usually specified commercial as well.

The DSB35B-C does not have a non-removable pin, so on an outswing door the pin sits accessible on the exterior side. For that opening the Hager BB1168-NRP is a non-removable pin full mortise ball bearing hinge in a heavy duty rating, which keeps the ball bearing construction while adding the NRP feature.

The Emtek 94013 is the closest match on size and corner style: it is a 3-1/2 inch by 3-1/2 inch square corner ball bearing hinge sold as a pair in plated steel. The Deltana DSB35B-C is the same 3-1/2 inch by 3-1/2 inch square corner ball bearing pair but is solid brass rather than plated steel, so the substitution trades brass substrate for a plated steel base while keeping the mortise pocket and screw pattern the same size.

The DSB35B-C is a 3-1/2 inch by 3-1/2 inch hinge and will not fill a larger mortise. For a 4 inch square corner pocket, the Orca Hardware COM4040 is a 4 inch by 4 inch square corner plain bearing commercial hinge, and the Delaney CH401X is a 4 inch by 4 inch commercial ball bearing hinge with square corners. For a 4-1/2 inch square corner pocket, the Orca Hardware COM3535 is a 4-1/2 inch by 4-1/2 inch square corner ball bearing commercial hinge.

The DSB35B-C is designated for residential use. For commercial openings, the Ives 3CB1 is a 3-knuckle concealed bearing full mortise hinge with a medium duty rating, and the Ives 3CB1HW is the heavy weight concealed bearing version of the same full mortise pattern. Both use concealed bearings rather than the exposed ball bearing knuckles of the Deltana.

It ships as a pair of hinges. Most interior residential doors use three hinges per leaf, so a single pair covers two of the three positions and you would order a second pair (or a pair plus a single) to hang one door completely.

Solid brass, both base material and substrate. That matters on an exterior or coastal opening where plated steel hinges rust through the finish at the knuckles. The Emtek 91013 and 94013 hinges of the same 3-1/2 inch square corner size are plated steel by comparison.

No. It is a full mortise butt hinge with two symmetrical leaves, so the same hinge works on a left hand or right hand door. Handing only becomes a factor with spring hinges or electrified hinges, such as the Stanley CECB1900R54L, which is specified left-handed.

The DSB35B-C is a 3-1/2 inch hinge only. Stepping up to 4 inches in a square corner residential hinge, the Delaney RH40xx (4 by 4 inch, 5/8 inch radius and square) and the Orca 4040 Series 4 by 4 inch square corner plain bearing hinge are the sizes we carry, and the Delaney CH401X is the 4 by 4 inch commercial square corner ball bearing version. Note those are steel rather than solid brass, so the finish match to an oil rubbed bronze brass hinge will not be exact.

Yes. The Emtek 91013 is a residential duty plain bearing hinge in the same 3-1/2 inch by 3-1/2 inch square corner pair, and the Schlage Residential S3P1010 is a 3.5 inch by 3.5 inch square corner plain bearing mortise hinge supplied in packs of three. Both use a plain bearing instead of the ball bearing construction of the DSB35B-C, which is the difference that matters on a low-traffic interior door where bearing wear is not a concern.

Not on corner style. The Delaney RH35xx is a 3-1/2 inch by 3-1/2 inch bulk steel residential interior hinge with a 5/8 inch radius corner, while the DSB35B-C has square corners. A 5/8 inch radius leaf will not fill a square-routed mortise cleanly, and a square leaf will not seat in a radius-routed pocket. Match the corner to the existing frame prep before substituting.

The Emtek 92013 is a heavy duty plain bearing hinge in 3-1/2 inch by 3-1/2 inch with square corners, plated steel, sold as a pair, and the Emtek 96213 is a heavy duty hinge in the same 3-1/2 inch by 3-1/2 inch square corner pair. Both share the DSB35B-C footprint of 3-1/2 inch by 3-1/2 inch with square corners, so the frame prep carries over; the 92013 uses a plain bearing rather than the ball bearing of the Deltana.

The DSB35B-C is a mechanical full mortise hinge with no electrical provision. For power transfer, the Command Access ETH-CB70 is a 3-knuckle standard weight steel base energy transfer hinge rated medium duty, and the Command Access ETH-BB68 is the 5-knuckle heavy duty steel base version. If you also need door position monitoring, the Command Access ETM-CB70 adds door position sensing to a 3-knuckle steel base hinge.

The DSB35B-C is a standard full mortise ball bearing hinge with no closing spring. The Stanley Security 2060R is a full mortise spring hinge with square corners in 4.5 inch by 4.5 inch on a ferrous steel base, rated heavy duty. Note the size change: it is a 4.5 inch leaf against the 3-1/2 inch by 3-1/2 inch Deltana, so the frame and door mortises have to be enlarged.

Same nominal size, different corner and bearing. The Orca Hardware COM3514 is a 3.5 inch by 3.5 inch commercial hinge with a 1/4 inch radius corner and a plain bearing, rated medium duty. The DSB35B-C is 3-1/2 inch by 3-1/2 inch with square corners and ball bearings. The 1/4 inch radius will not seat in a square-routed mortise, so confirm the existing corner prep before treating the two as interchangeable.

Oil rubbed bronze. That is a darkened living finish over solid brass, so it will patina at the knuckles and contact points over time. If you are matching hinges across several doors in a unit, order them together so they age as a set.

They share square corners but differ in two ways that affect the order. The Ives 1010RP is a steel plain bearing residential hinge with square corners supplied as a set of three, while the DSB35B-C is a solid brass ball bearing hinge sold as a pair. If you are hanging a three-hinge door, the 1010RP covers the opening in one box; if you are matching brass leaves already on adjacent doors, the Deltana is the closer match.