Deltana SS44NB 4" x 4" Square Corner Hinge, NRP, Ball Bearing, Stainless Steel (Pair)

That is what the SS44NB is built for. The leaves and substrate are stainless steel, which resists corrosion far better than a plated or painted steel hinge on waterside and outdoor openings. Salt air is the usual killer of standard steel hinges: the pin rusts, the knuckle stains the door face, and the hinge starts squealing within a season. Stainless avoids that. The ball bearing knuckle also keeps a heavier exterior door swinging without the wear a plain bearing takes.

NRP is a non-removable pin. A set screw in the barrel seats against the pin so it cannot be driven out while the door is closed. It matters only on out-swinging doors, where the hinge knuckles sit on the exterior side. Without NRP, someone pops the pin and lifts the door off its frame regardless of what lock is on it. On an in-swinging door the knuckles are protected already and NRP buys you nothing. Order the SS44NB where the door swings out: exterior entries, back-of-house service doors, storage and utility rooms.

Only if the existing hinge is also 4 by 4 with square corners. The SS44NB measures 4 inches by 4 inches and the leaf corners are square, so it drops into a square-cut mortise of that size. If your current mortise has rounded corners, from a 5/8 inch or 1/4 inch radius hinge, a square leaf will not seat and you would be chiseling out the corners. Most factory-prepped residential doors are radius corner. Pull one hinge and look at the corner before you order.

The SS44NB is sold by the pair, so two hinges per unit. A standard 6 foot 8 inch door takes three hinges, meaning you order two pairs and have one spare, or plan the odd hinge across a second opening. Taller or heavier doors run four. Screws are included: #12 x 1-1/4 inch wood screws for hanging into a wood jamb and #10 x 1/2 inch machine screws for a metal frame with tapped holes.

Residential. Deltana classifies the SS44NB as a residential duty hinge, so it belongs on apartment entries, single family exteriors, and light traffic openings, not on a high cycle commercial door. For a commercial door needing a non-removable pin, the Hager BB1168 NRP is a heavy duty full mortise ball bearing hinge with the same NRP feature. If you need commercial duty in a 4 by 4 square corner, the Delaney CH401X is a commercial ball bearing hinge in that size and corner style.

Not without recutting. The SS44NB is 4 by 4, so the leaf is a half inch taller and a half inch wider than a 3-1/2 by 3-1/2 hinge, and both the door and the jamb mortise would need to be enlarged. Going the other way, the smaller hinge in the bigger pocket, leaves a visible gap. If your openings are 3-1/2 inch square corner, match the size instead: the Emtek 91013 and the Schlage Residential S3P1010 are both 3-1/2 by 3-1/2 square corner mortise hinges. Measure a leaf on the door before ordering, since 3-1/2 and 4 inch look close by eye.

The Orca Hardware 4040 Series is the nearest match in the same size and corner style: a 4 inch by 4 inch square corner commercial hinge. The difference is the bearing. The SS44NB is a ball bearing hinge in stainless steel with a non-removable pin, while the Orca 4040 Series is a plain bearing hinge. If the ball bearing is what you are matching, the Orca 3535 Series is a square corner ball bearing commercial hinge, but it is 4-1/2 inch by 4-1/2 inch, which needs a wider mortise and a different jamb prep than a 4 inch hinge.

The Hager BB1168 is the heavy duty answer to the same problem. It is a non-removable pin full mortise ball bearing hinge rated heavy duty, so it carries the same anti-removal logic as the SS44NB into a heavier opening. The SS44NB is a residential-rated hinge, so on a heavy commercial leaf the BB1168 is the better fit. What you give up is the material: the SS44NB is stainless steel, which is why it is specified on waterside and outdoor properties for corrosion resistance.

No. The SS44NB has square corners, and a square corner hinge will not seat in a mortise routed for a radius corner without recutting the pocket. For a radiused pocket in the same 4 inch by 4 inch size, the Orca Hardware 4014 Series is a 4 inch by 4 inch 1/4 inch radius corner commercial hinge, and the Delaney 4 inch by 4 inch exterior residential hinges are cut to a 5/8 inch radius. Check which radius your existing mortise was cut to before ordering, since 1/4 inch and 5/8 inch pockets are not interchangeable either.

No handing to specify. A full mortise butt hinge like the SS44NB is symmetrical, so the same hinge hangs a left hand or right hand door. Handing only becomes an ordering question on hinges with electrified wire transfers or spring mechanisms, such as the Stanley CECB1900R54L, which is built left-handed and has to be ordered to match the opening. For the SS44NB, pick the finish and the quantity and you are done.

Weight and traffic decide it. The SS44NB is a ball bearing hinge, meaning bearings sit between the knuckles to carry the load and cut friction. That is what you want under a solid core or heavy exterior slab, and it stops the sag and squeak a plain bearing develops once the door gets used hard. Plain bearing is fine on a light hollow core interior door, and cheaper options exist in that lane, like the Orca 4040 Series 4 by 4 square corner plain bearing hinge or the Emtek 92013 in 3-1/2 by 3-1/2. If the door is exterior, heavy, or gets used all day, stay with ball bearing.

Mortising is required. The SS44NB is a full mortise hinge, so both leaves recess flush into a pocket, one in the door edge and one in the jamb, and the barrel is all that shows when the door is closed. There is no surface applied version of it. Surface mount is a different animal, used where you cannot cut the door or frame at all, and the Hager 990 full surface prison hinge is that kind of product rather than a substitute for a residential butt hinge.

No. The SS44NB is a plain mechanical butt hinge with a solid non-removable pin and no wire channel through the knuckle. Powering an electrified lock or picking up door position at the hinge needs a purpose built unit: the Command Access ETH-BB68 is a heavy duty energy transfer hinge, the ETH-CB70 the standard weight version, and the ETM-BB68 adds an integrated door position switch. Those replace one hinge in the set; the rest of the openings can stay on standard hinges.

They are not the same hinge. The Deltana SS44NB is a ball bearing hinge; the Orca Hardware 4040 Series is a plain bearing hinge in the same 4 inch by 4 inch square corner format, and the Emtek 91013 is a residential plain bearing hinge in plated steel with square corners at 3-1/2 inch by 3-1/2 inch. Ball bearing carries a heavier or higher-cycle leaf without the knuckle wear a plain bearing takes on. On a low-traffic interior door where the leaf is light, a plain bearing hinge does the job; on a door that swings all day or carries weight, the ball bearing is the reason to specify the SS44NB.

Both are square corner ball bearing hinges sold as a pair. The Emtek 94013 is 3-1/2 inch by 3-1/2 inch in plated steel; the Deltana SS44NB is 4 inch by 4 inch in stainless steel with a non-removable pin. The size difference is the first thing to settle, since a 3-1/2 inch hinge will not fill a 4 inch mortise. Beyond that, plated steel and solid stainless behave differently on a door exposed to weather, which is why the stainless SS44NB is put on waterside and outdoor properties.

Only if the opening actually needs power through the door. The Command Access ETH-CB70 is a 3 knuckle standard weight energy transfer hinge and the ETH-BB68 is a 5 knuckle heavy duty version; the BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect. Those carry current to an electric strike, electrified lock or monitoring device. The Deltana SS44NB is a mechanical ball bearing hinge with no wire path, so it hangs the door and nothing else. If you have no access control on the leaf, the electrified hinges add cost and a wire harness you will not terminate.

The SS44NB covers the 4 inch by 4 inch square corner openings. For the 4-1/2 inch square corner doors, the Orca Hardware 3535 Series is a 4-1/2 inch by 4-1/2 inch square corner ball bearing commercial hinge, and the Don-Jo HWBB74545 is a heavy weight full mortise ball bearing hinge at 4-1/2 inch by 4-1/2 inch in satin chrome. All three are square corner ball bearing hinges, so the prep style stays consistent across the building even though the leaf sizes and finishes differ.

Only the spring hinge does that job. 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, and it returns the door on its own. The Deltana SS44NB is a plain-swinging ball bearing hinge with no closing spring, so a door hung on it stays where you leave it. Note the sizes are not interchangeable either: the 2060R is 4.5 inch and the SS44NB is 4 inch by 4 inch, so swapping one for the other means a new mortise.

They solve related problems at very different levels. The Deltana SS44NB uses a non-removable pin so the hinge pin cannot be driven out from the secure side of an outswing door. The BEST BB855 is a heavy-duty steel double weight concealed ball bearing detention hinge, the Stanley BB855 is a 5 inch by 6 inch double weight prison hinge furnished with no holes and not swaged, and the Hager 990 is a 3 inch by 4 inch full surface prison hinge with a welded tip. Those are built for detention openings and the Stanley requires field drilling. For a standard exterior door where the concern is someone reaching the barrel, the NRP on the SS44NB addresses it without detention prep.

Not without changing the door and frame prep. The Deltana SS44NB is a full mortise hinge, meaning both leaves recess into routed pockets in the door edge and the jamb. The Hager 1129 is a half mortise plain bearing commercial hinge in 4-1/2 inch standard weight steel, which mortises into the door and surface-mounts to the frame, and the Hager 990 is a full surface prison hinge that mounts on the face of both. Those are for channel-iron frames and applied conditions, not for a wood or hollow metal opening already cut for a full mortise hinge.

Step down in size and bearing. The Delaney 3-1/2 inch by 3-1/2 inch bulk steel residential hinges are built for interior openings with a 5/8 inch radius corner and come as a pair, and the Orca Hardware 3514 Series is a 3.5 inch by 3.5 inch 1/4 inch radius corner plain bearing commercial hinge at medium duty. Both are plain bearing, so they suit a light interior leaf that is not cycling constantly. Keep the Deltana SS44NB where you want ball bearings, stainless steel, and a non-removable pin, which is the exterior and higher-traffic case.

Two: polished stainless and brushed stainless. Brushed is the one that matches most contemporary lever and deadbolt hardware and it hides fingerprints and water spotting, which is worth something on an exterior door. Polished reads brighter and pairs with polished chrome trim. Both are the same stainless hinge underneath, so mixing them across a building is purely a look decision, not a performance one.

A 4 inch or taller leaf usually takes three hinges, so a pair covers one door plus a spare or two doors that only need two. If you want a three-count carton, the Ives 1010RP is a steel plain bearing residential hinge with square corners sold as a set of three, and the Schlage Residential S3P1010 is a 3.5 inch by 3.5 inch square corner plain bearing mortise hinge in a pack of three. Both are plain bearing rather than ball bearing, and the S3P1010 is 3.5 inch rather than the 4 inch by 4 inch of the SS44NB, so confirm the mortise height before you order.

No, a pivot hangs the door on a different axis and needs different prep. The BEST DAP-3 is a heavy duty double acting pivot for commercial interior doors, which lets a leaf swing both directions from a floor and head pivot set rather than a hinged jamb. The BEST CB1969R is a concealed bearing heavy weight pivot-reinforced hinge, which is still a hinge but built for pivot-reinforced conditions. The Deltana SS44NB is a full mortise hinge for a single-direction swing on a standard jamb.