Deltana SS45NB 4-1/2" x 4-1/2" Square Hinge, Ball Bearing, NRP, Stainless Steel (Pair)

NRP is a non-removable pin. A set screw in the barrel keeps the pin from being driven out while the door is closed, so an outswing exterior door can't be lifted off its hinges from the outside. That's the reason to use the SS45NB on any door that swings out toward a public side. On an inswing door the pin isn't reachable anyway, so NRP is optional there.

That's exactly what the Deltana SS45 stainless hinges are built for. The hinge body is stainless steel throughout, not plated steel, so it holds up in salt air and damp exterior conditions far better than a standard plated steel hinge, which will rust through the plating at the knuckles first. For waterside and outdoor openings this is the right material call.

Deltana classes the SS45NB as a residential hinge. It's built for homes, condos, and light multi-family exterior doors, particularly in coastal locations. For a commercial opening under traffic, look at a commercial ball bearing hinge in the same 4-1/2 by 4-1/2 square corner size, such as the Orca Hardware 3535 Series, or the Hager BB1168 NRP if you need the non-removable pin in a heavy duty hinge.

The Orca Hardware 3535 Series is the closest match in size and bearing type: it is a 4-1/2 inch by 4-1/2 inch square corner ball bearing commercial hinge, rated medium duty. The SS45NB matches it on 4-1/2 by 4-1/2 dimensions, square corners and ball bearing operation, and differs in that it is stainless steel and supplied with a non-removable pin, which the Orca 3535 name does not call out. Use the SS45NB where corrosion resistance and an NRP are the deciding factors, and the Orca 3535 where a steel commercial hinge in that size is what the opening calls for.

The SS45NB is a residential-rated ball bearing hinge with a non-removable pin in stainless steel. For a heavy commercial opening that still needs the NRP security feature, the Hager BB1168 is the alternative to look at: it is a non-removable pin full mortise ball bearing hinge rated heavy duty. Both give you a pin that cannot be pulled from the hinge side of an out-swinging door; the difference is the duty rating and the stainless base on the Deltana.

The SS45NB has square corners, so it will not drop into a pocket routed with a radius. For radius prep, Delaney lists a 4 inch by 4 inch exterior residential hinge with a 5/8 inch radius and a 3-1/2 inch by 3-1/2 inch interior residential hinge with the same 5/8 inch radius, both sold as pairs. Orca also lists 4 inch by 4 inch and 3-1/2 inch by 3-1/2 inch plain bearing commercial hinges with a 1/4 inch radius corner. Match the radius in the existing mortise before ordering.

Several 4-1/2 inch hinges share the dimension but not the application. The Stanley 2060R is a 4.5 inch by 4.5 inch square corner full mortise spring hinge, which closes the door on its own and is specified where self-closing is required. The McKinney SQ3331 is a 4-1/2 inch by 4-1/2 inch square barrel 2-knuckle decorative hinge. The Hager 1129 is a half mortise hinge at 4-1/2 inch, so it mortises into the door but surface-applies to the frame. The SS45NB is a full mortise ball bearing hinge with a non-removable pin, so none of those three are drop-in swaps despite the shared size.

No. The SS45NB is a mechanical stainless steel ball bearing hinge with no wiring path. For power transfer, use an electrified hinge: the BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect, and the Stanley CECB1900R54L is a 3-knuckle concealed bearing concealed conductor hinge, steel full mortise, 4-1/2 inch by 4-1/2 inch square corner, left-handed, 4-wire. Command Access also lists the ETH-BB68 heavy duty and ETH-CB70 standard weight energy transfer hinges.

No handing to call out. It's a symmetrical full mortise butt hinge with a square barrel, so the same hinge works on a left hand or right hand door. The only thing to get right at install is pin orientation, head up, so the NRP set screw sits in the barrel facing the closed side.

Ball bearings sit between the knuckles and carry the door's weight on a rolling surface instead of metal rubbing on metal. On a heavy exterior slab, a solid core door, or any opening with a closer on it, that's what keeps the door from squeaking and the knuckles from wearing oval. The Deltana SS45NB is ball bearing. If the door is a light interior slab with no closer, a plain bearing hinge like the Emtek 91013 is enough.

Leaf thickness is .134 inch. Mortise the pocket to that depth in both the door edge and the jamb so the leaf sits flush. Cut too shallow and the door stands proud and binds on the stop; too deep and it hinge-binds and the leaves strike. Screw holes take #12 x 1-1/4 inch wood screws, so make sure you're into solid jamb material, not just casing.

No. The SS45NB is only 4-1/2 by 4-1/2 inches and won't fill a 3-1/2 inch mortise or match that screw pattern. For a 3-1/2 by 3-1/2 square corner opening, look at the Emtek 94013 heavy duty ball bearing hinge or the Schlage S3P1010 plain bearing set. Neither is stainless, though, so if the opening is coastal, stay at 4-1/2 inches and enlarge the prep rather than dropping down in size.

For interior doors carrying lighter loads, a plain bearing hinge covers the job. The Orca Hardware 4040 Series is a 4 inch by 4 inch square corner plain bearing commercial hinge, and the Emtek 91013 is a 3-1/2 inch by 3-1/2 inch square corner plain bearing hinge in plated steel, sold as a pair. Both keep the square corner profile of the SS45NB at a smaller leaf size without the ball bearing knuckles or the non-removable pin.

Yes. The Ives 3CB1 is a 3-knuckle concealed bearing full mortise hinge rated medium duty, and the 3CB1HW is the heavy weight steel version of the same concealed bearing full mortise design. The Hager 920 is a 2-knuckle full mortise concealed plain bearing hinge in steel, medium duty. All hide the bearing inside the barrel, where the SS45NB uses a visible ball bearing knuckle and a stainless steel body.

The Stanley FBB191 is a 5-knuckle full mortise standard weight hinge at 4.5 inch by 4.5 inch, the same leaf dimension as the SS45NB. McKinney's MacPro MPB79 is also a 5-knuckle standard weight hinge. The SS45NB differs in being a stainless steel residential-rated hinge supplied as a pair with a non-removable pin and square corners.

Two stainless finishes: polished stainless and brushed stainless. Brushed is the usual match for satin nickel and brushed chrome trim and hides fingerprints on a high traffic entry; polished pairs with bright chrome. Pick one and use it across all the openings on the building so the hinges match door to door.