4-1/2" x 4-1/2" Square Hinges, Heavy Duty
Deltana Steel Hinges are a reliable value choice for indoor applications. They are available in an array of fine finishes.
- Unit of Measure (U/M): pair
- Options: Heavy Duty
- Material: Steel
- Wood Screw: #12 x 1-1/4"
- Machine Screw: #12 x 1/2"
- Thickness: 0.134
Manufacturer Resources:
Manufacturer Resources
Product Specs
- Corner Style:
- Square Corners
- Product Group:
- Door Hinges and Pivots
- Product Type:
- Hinges
- Product Subgroup:
- Full Mortise Hinges
- Subcategory:
- Hinges and Pivots
- Commercial/Residential:
- Residential
- Bearing Type:
- Plain Bearing
- Non-Removable Pin (NRP):
- No
- Series:
- S45 Series
- MAP Policy:
- Yes
- Product Model:
- S45
- Product Size:
- 4.5" x 4.5"
- Product Dimension:
- 4-1/2" x 4-1/2"
- Mounting Method:
- Full Mortise
- Product Material:
- Steel
- Product Category:
- Door Trim & Accessories
- Product Substrate:
- Steel
- Department:
- Door Hardware
Deltana S45USPW – Frequently Asked Questions
1) Will Deltana S45 hinges work on an exterior door?
The S45 is a steel, plain bearing hinge rated residential and intended for interior openings. Steel with a plated or painted finish will corrode in weather, and a plain bearing carries less cycle wear than a bearing hinge. For an exterior residential door, the Delaney 4" x 4" exterior residential hinge (RH45 series) is built for that use. For an exterior commercial opening, step up to a ball bearing hinge such as the Orca Hardware 3535 Series 4-1/2" x 4-1/2" square corner ball bearing hinge.
2) Do Deltana S45 hinges fit a standard 4-1/2 inch square corner mortise?
They drop into a 4-1/2 x 4-1/2 inch full mortise pocket with square corners, no radius. If the existing hinge pockets on your door and jamb were routed with a radius corner router (1/4 inch or 5/8 inch radius is typical), the square leaf will not seat without chiseling the corners square. Match corner style to what is already cut.
3) Can I use Deltana S45 hinges on an apartment entry or unit door for security?
Not for an outswing security application. The S45 has a removable pin and no NRP option, so on an outswing door the hinge pins are on the accessible side and can be driven out. For an outswing unit door use a non-removable pin hinge such as the Hager BB1168 NRP full mortise ball bearing hinge. On an inswing door with the barrels inside, the removable pin is a non-issue and it makes the slab easier to lift off for maintenance.
4) Are Deltana S45 hinges heavy enough for a solid core or commercial door?
For a commercial opening, no. The S45 is a residential plain bearing hinge, and a high traffic door needs a bearing hinge to survive the cycles. Deltana's 0.134 inch leaf handles a residential solid core slab fine on three hinges, but for an office, school, or common area door go to a bearing hinge in the same 4-1/2 x 4-1/2 size, such as the Don-Jo HWBB74545 heavy weight full mortise ball bearing hinge or the Ives 3CB1HW heavy weight concealed bearing full mortise hinge.
5) My existing hinges are 3-1/2 inch. Can I replace them with the Deltana S45?
Not without recutting. The S45 measures 4-1/2 x 4-1/2 inches, so it is a full inch taller and wider than a 3-1/2 hinge and both the door edge and jamb mortises would need to be lengthened and deepened. To keep the existing pockets, stay at 3-1/2 x 3-1/2 with square corners, for example the Emtek 91013 residential plain bearing pair or the Emtek 92013 heavy duty plain bearing pair, both square corner plated steel.
6) Can the Deltana S45 be used on a door that needs power at the lock, like an electric strike or an electrified lever?
No. The Deltana S45 is a plain bearing steel hinge with no provision for wiring. For a powered leaf, the Command Access ETH-BB68 is an energy transfer hinge with a five knuckle heavy duty steel base, the ETH-CB70 is a three knuckle standard weight energy transfer hinge rated medium duty, and the BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect. If the opening also has to report door position, the Command Access ETM-BB68 adds an integrated door position switch.
7) Which hinge keeps the plain bearing of the Deltana S45 but drops to a 3-1/2 inch leaf for a lighter interior door?
The Deltana S45 is a plain bearing steel hinge with square corners at 4-1/2 inch by 4-1/2 inch. At the smaller leaf, the Emtek 91013 is a residential plain bearing hinge pair, 3-1/2 inch by 3-1/2 inch with square corners in plated steel, and the Schlage Residential S3P1010 is a 3-1/2 inch by 3-1/2 inch square corner plain bearing mortise hinge sold in packs of three with a medium duty rating. Both hold the square corner and plain bearing arrangement, so a 3-1/2 inch interior mortise takes them without rerouting to 4-1/2 inch.
8) The Deltana S45 has a removable pin. What 4-1/2 inch hinge should go on an out-swinging exterior door instead?
The Deltana S45 is not a non-removable pin hinge, which is why it is specified for indoor residential openings. Where the pin is reachable from the outside, the Hager BB1168 is a non-removable pin full mortise ball bearing heavy duty hinge. It stays full mortise like the S45, so the leaf still mortises into the door and frame, and the NRP set screw is what keeps the pin captive on an out-swing.
9) What do I order instead of the Deltana S45 if the door needs to self close?
The Deltana S45 is a plain bearing hinge; it carries the door and nothing more. Where the leaf has to return the door on its own, the Stanley Security 2060R is a full mortise spring hinge with square corners at 4.5 inch by 4.5 inch on a ferrous steel base, rated heavy duty. It matches the S45 on leaf size, corner style and full mortise mounting, so the same prep accepts it, and the spring barrel is what adds the closing force.
10) The frame is already routed for a radius corner hinge. What takes the place of the Deltana S45 there?
The Deltana S45 has square corners, so it will not sit in a radius routed mortise without filling the corners. For a radius prep, the Orca Hardware 4014 Series is a 4 inch by 4 inch hinge with a 1/4 inch radius corner and plain bearing, medium duty, and the Delaney RH45xx is a 4 inch by 4 inch bulk residential exterior hinge with a 5/8 inch radius sold as a pair. Check which radius the existing router template cut, since 1/4 inch and 5/8 inch corners are not interchangeable.
11) Is the Deltana S45 acceptable on a detention or behavioral health opening?
No. The Deltana S45 is a residential plain bearing hinge with a removable pin. Detention openings call for purpose built hardware: the BEST BB855 is a heavy duty steel double weight concealed ball bearing prison hinge, the Stanley Security BB855 is a double weight prison hinge at 5 inch by 6 inch furnished with no holes and not swaged, and the Hager 990 STEEL is a full surface prison hinge 3 inch by 4 inch with a welded tip, heavy duty. Where a door has to open both ways under load, the BEST DAP-3 is a heavy duty double acting pivot for commercial interior doors.
12) How many pairs of S45 hinges do I need for one door?
The S45 is sold as a pair, two hinges per order. A standard interior door hung on three hinges needs two orders (you will have one spare leaf), and a tall or heavier door on four hinges needs two pairs exactly. Count the hinges on the door you are replacing before you order.
13) Do Deltana S45 hinges come with screws?
Screws are supplied: #12 x 1-1/4 inch wood screws for a wood jamb and door, and #12 x 1/2 inch machine screws for a metal frame with tapped holes. If you are hanging a heavy slab, many installers swap the jamb screws for longer ones that reach the framing stud behind the jamb, which the supplied 1-1/4 inch screw will not do.
14) What gauge or leaf thickness is the Deltana S45 hinge?
Leaf thickness is 0.134 inch on the S45, which is a heavy duty leaf for a residential hinge and the reason it holds a solid core or heavier slab better than a thin builder-grade hinge. That thickness also matters for the mortise depth: if your existing pockets were cut for a thinner leaf, the door will bind against the stop until the mortises are deepened.
15) What is the difference between a plain bearing and a ball bearing hinge for a residential door?
A plain bearing hinge like the Deltana S45 has the knuckles riding directly on each other, which is quiet and fine for the cycle count a bedroom, closet, or hall door sees. A ball bearing hinge puts bearings between the knuckles so it handles a heavier slab, a door closer, and far more open-close cycles without wearing and sagging. Rule of thumb: plain bearing for light interior doors, ball bearing anywhere the door is heavy, has a closer, or gets used all day. Ball bearing options in the same 4-1/2 x 4-1/2 square corner size include the Orca Hardware 3535 Series.
16) Can I use the Deltana S45 on a hollow metal frame, or is it wood only?
Both. The S45 ships with #12 x 1/2 inch machine screws for a hollow metal frame that has tapped hinge holes, alongside #12 x 1-1/4 inch wood screws for a wood jamb. Note it is a full mortise hinge, so the frame needs a hinge pocket already prepped at 4-1/2 x 4-1/2 with square corners.
17) Is the Deltana S45 handed, or does one hinge work on left and right hand doors?
Not handed. A full mortise butt hinge with a removable pin is symmetrical, so the same S45 pair hangs a left hand or right hand door. Handing only decides which side of the opening the barrels end up on, which is what matters for pin access, since the S45 pin is removable rather than NRP.
18) I manage a building and want one hinge across all the unit interior doors. Is the S45 a good standard?
For interior doors in a residential building it works as a fleet standard: a single 4-1/2 x 4-1/2 square corner size, steel, sold in pairs, in nine finishes so you can hold one part number and change only the finish per building. Two limits to plan around. It is a residential plain bearing hinge, so any common area or high traffic door and anything with a closer should get a bearing hinge instead. And the pin is removable with no NRP option, so outswing entry doors need a different hinge.
19) Is a 4 inch square corner ball bearing hinge a valid stand-in for the Deltana S45?
Not without changing the prep. The Deltana S45 is 4-1/2 inch by 4-1/2 inch. The Delaney CH401X is a 4 inch by 4 inch commercial ball bearing hinge with a square corner, and the Orca Hardware 4040 Series is a 4 inch by 4 inch square corner plain bearing commercial hinge rated medium duty. The square corner carries over, but a 4 inch leaf leaves a half inch of open mortise at the top and bottom of a jamb cut for the S45. At 4 inch they are the right call on a door already prepped for 4 inch, not as a swap into a 4-1/2 inch pocket.
20) Is the McKinney SQ3331 a drop-in match for the Deltana S45 since both are 4-1/2 by 4-1/2 square?
The two share a leaf size: the Deltana S45 is 4-1/2 inch by 4-1/2 inch with square corners, and the McKinney SQ3331 is a 4-1/2 inch by 4-1/2 inch decorative hinge rated standard duty. They are built differently. The SQ3331 is a square barrel two knuckle decorative hinge, while the S45 is a plain bearing steel hinge sold as a pair for indoor residential use. If the goal is to match the barrel profile of existing S45 hinges down the hall, the square barrel and two knuckle count of the SQ3331 will read differently at the jamb.
21) What is the difference between the Deltana S45 and the Hager 1129 for a 4-1/2 inch opening?
Both are plain bearing steel hinges at 4-1/2 inch. The difference is the mounting. The Deltana S45 is full mortise, so both leaves recess into the door and the frame. The Hager 1129 is a half mortise plain bearing commercial hinge, standard weight steel, rated heavy duty, which mortises into the door but applies to the face of the frame. Half mortise is what a hollow metal frame with no hinge cutout calls for; on a wood jamb already routed for a full mortise leaf, the S45 arrangement is the one that fits.
22) Which hinge goes on a 4-1/2 inch square corner opening that has to take a heavier or wider door than the Deltana S45 is meant for?
The Deltana S45 is a 4-1/2 inch by 4-1/2 inch residential hinge. Where the leaf needs more width to carry a heavier or thicker door, the Don-Jo HWBB75045 is a heavy weight full mortise ball bearing hinge at 5 inch by 4-1/2 inch in steel with a satin chrome finish, and the HWBB85045 is the same 5 inch by 4-1/2 inch heavy weight full mortise ball bearing hinge in brass. Both go a half inch taller on the leaf than the S45, so the door and jamb mortise has to be lengthened.
23) For a run of interior apartment doors, what else besides the Deltana S45 comes as a pair in steel?
The Deltana S45 ships as a pair in steel for indoor use, 4-1/2 inch by 4-1/2 inch square corner. Other pair-packed residential steel options are the Delaney RH35xx at 3-1/2 inch by 3-1/2 inch with a 5/8 inch radius for interiors, the Delaney RH40xx at 4 inch by 4 inch in 5/8 inch radius and square, and the Emtek 92013 heavy duty plain bearing pair at 3-1/2 inch by 3-1/2 inch with square corners in plated steel. Match the corner style and leaf size to the existing mortises before ordering the run.
24) If I want the barrel to disappear at the jamb instead of the standard knuckle look of the Deltana S45, what hinge does that?
The Deltana S45 is a plain bearing full mortise steel hinge with a conventional knuckle barrel. For a concealed bearing barrel, the Hager 920 is a full mortise concealed plain bearing hinge with two knuckle steel construction, medium duty, and the Ives 3CB1 is a steel three knuckle concealed bearing full mortise hinge, also medium duty. Both stay full mortise like the S45, so the leaf still recesses into door and frame; what changes is that the bearing sits inside the barrel rather than showing as a separate race.
25) What is the equivalent of the Deltana S45 in a 4-1/2 inch five knuckle full mortise hinge?
The Stanley Security FBB191 is a five knuckle full mortise standard weight hinge at 4.5 inch by 4.5 inch, rated heavy duty, matching the Deltana S45 on leaf size and full mortise mounting. The McKinney MP79 MacPro is also a five knuckle full mortise standard weight hinge, rated standard duty, and the MPB79 MacPro is the five knuckle standard weight version in the same family. Confirm the corner style against the existing prep, since the S45 is cut square.
26) Steel is fine indoors, but what replaces the Deltana S45 where corrosion is a concern?
The Deltana S45 is a steel hinge specified for indoor applications. Where a ferrous base is the wrong choice, the McKinney T2314 is a non ferrous hinge, standard weight, five knuckle, rated medium duty. Non ferrous is the material change that matters at a pool deck, a wash down area, or a coastal exterior door; the S45 steel body is intended for the dry interior openings instead.
27) What finishes do Deltana S45 hinges come in, and can I get one to paint?
Nine finishes: oil rubbed bronze, brushed nickel, antique nickel, polished chrome, brushed chrome, polished brass, antique brass, paint black, and prime coat white. Prime coat white is the one to order if you are painting the hinges to match trim, it takes topcoat directly. Paint black is a finished black rather than a primer.
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Does the Deltana S45USPW come with a warranty?
Absolutely. The Deltana S45USPW is backed by a manufacturer’s warranty.
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