Deltana SS35 3-1/2" x 3-1/2" Square Hinge, Stainless Steel (Pair)

That's what the SS35 is for. It's a solid stainless steel hinge, base material and substrate both stainless, so it resists corrosion better than a plated or painted steel hinge on waterside and coastal openings. Salt air is what kills plated steel hinges first at the knuckle and the screw heads; stainless doesn't have a plating to fail. Finish choice is polished or brushed stainless, and both are the same stainless base.

Leaf size is 3-1/2 by 3-1/2 inches with square corners, so it drops into an existing square-cut mortise of the same size without re-routing. Square corner is the prep you get from a hand-cut or template-routed mortise; if the doors in the building have rounded corner pockets (1/4 inch or 5/8 inch radius, cut by a hinge-butt router), the SS35 will sit in the pocket but leave a gap at each corner. Measure one existing leaf before ordering a building's worth.

Plain bearing, and that sets the limit. Plain bearing hinges suit doors that see moderate traffic and no closer pulling on them; high-cycle openings, heavier doors, and anything with a door closer want a bearing hinge. If the opening is a main entry or a corridor door in a commercial building, look at a ball bearing option instead: the Orca Hardware 3535 Series is a 4-1/2 by 4-1/2 inch square corner ball bearing commercial hinge, and the Emtek 94013 is a heavy duty ball bearing hinge in the same 3-1/2 by 3-1/2 inch square corner size as the SS35.

Not without addressing the pin. The SS35 is not a non-removable-pin hinge, so on an outswing door the knuckles and pin sit on the exterior and the pin can be driven out. For an outswing exterior opening where that matters, use an NRP hinge such as the Hager BB1168 NRP, a heavy duty full mortise ball bearing hinge with a non-removable pin. On an inswing door the pin is on the secure side and the SS35 is fine.

If the existing hinge is 3-1/2 by 3-1/2 with square corners, yes, the SS35 goes into the same mortise. Where it won't drop in is the common residential radius-corner hinge: the Delaney RH35xx bulk residential hinge is the same 3-1/2 by 3-1/2 size but with a 5/8 inch radius, and the Orca 3514 Series is 3.5 by 3.5 with a 1/4 inch radius. Those sit in routed pockets with rounded corners, and a square leaf won't fill them. Match the corner style before you order.

The Emtek 91013 is the nearest peer: a residential plain bearing hinge pair, 3-1/2 inch by 3-1/2 inch with square corners, in plated steel. The SS35 is also a plain bearing, square corner, 3-1/2 inch by 3-1/2 inch pair, but its material is stainless steel, which is what makes it suited to waterside properties and outdoor openings. If the opening is interior and dry, the plated steel 91013 covers the same size and corner. If it is exterior or coastal, stay with the stainless SS35.

Two Emtek peers stay at 3-1/2 inch by 3-1/2 inch with square corners and move up in duty. The Emtek 92013 is a heavy duty plain bearing pair in plated steel, keeping the same plain bearing action as the Deltana SS35. The Emtek 94013 is a heavy duty ball bearing pair, also 3-1/2 inch by 3-1/2 inch square corner plated steel, which swaps plain bearing for ball bearing. Both drop stainless for plated steel, so for a wet or coastal opening the stainless SS35 remains the corrosion-resistant choice.

The Deltana SS35 is a 3-1/2 inch by 3-1/2 inch hinge and will not fill a larger mortise. For a 4 inch by 4 inch square corner mortise, the Orca Hardware COM4040 is a square corner plain bearing commercial hinge in the same plain bearing action. For 4-1/2 inch by 4-1/2 inch square corner, the Orca Hardware COM3535 is a square corner ball bearing commercial hinge. Both are medium duty commercial units. Match the leaf size to the existing frame prep before choosing.

Not for a square corner mortise. The Orca Hardware COM3514 is a 3.5 inch by 3.5 inch plain bearing commercial hinge with a 1/4 inch radius corner, while the Deltana SS35 has square corners. The leaf size and the plain bearing action match, but a radius corner leaf will not seat correctly in a square corner mortise without rework. If the doors and frames were routed square, order the square corner unit; the COM3514 suits openings machined with a 1/4 inch radius.

No - the SS35 is a plain bearing full mortise hinge with no conductor. For power transfer, the Command Access ETH-CB70 is an energy transfer hinge with a 3 knuckle standard weight steel base, rated medium duty, and the Command Access ETH-BB68 is a 5 knuckle heavy duty steel base energy transfer hinge. If the opening also needs door position monitoring, the Command Access ETM-CB70 adds door position sensing on a 3 knuckle steel base. Order the SS35 for the non-electrified leaves and the transfer hinge for the powered one.

The SS35 sells by the pair, one pair per box, 30 pairs to a case. A 3-1/2 inch hinge is typically used on lighter interior or standard-height residential-size doors, which take two or three hinges; three-hinge doors need two pairs ordered, leaving a spare leaf. For a multi-door job the 30-pair case is the way to buy it.

Both screw types are specified with the hinge: #10 x 1 inch wood screws for wood doors and jambs, and #10 x 1/2 inch machine screws for hollow metal frames that are already tapped. So you can hang a wood door in a wood jamb or a wood door in a tapped steel frame without sourcing separate fasteners.

Same 3-1/2 by 3-1/2 inch square corner footprint and same plain bearing action; the difference is the metal. The SS35 is solid stainless steel. The Emtek 91013 is a residential plain bearing hinge in plated steel, and the Emtek 92013 is the heavy duty plain bearing version, also plated steel. Plating is a coating over steel, so on damp, coastal, or unconditioned openings it's the plating that goes first. Interior dry openings, the plated hinge does the same job.

Leaf thickness is 0.119 inch. That's what the mortise has to be routed to so the leaf sits flush with the edge of the door and the face of the jamb. If you're swapping into a mortise cut for a thinner leaf, the door will bind against the stop side; if the old leaf was thicker, you'll have a gap behind the new one that has to be shimmed or the door will sit proud.

The SS35 is only made in 3-1/2 by 3-1/2 inches, so a wider or taller opening needs a different hinge. For 4 by 4 inch square corner, the Orca Hardware 4040 Series is a plain bearing commercial hinge and the Delaney CH401X is a 4 by 4 commercial ball bearing hinge with square corners. At 4-1/2 by 4-1/2 inch square corner, the Orca 3535 Series is a ball bearing commercial hinge. None of those are stainless, so if corrosion resistance is the reason you were looking at the SS35, that trade needs weighing.

No handing to specify. The SS35 is a full mortise butt hinge with a pin, so the same hinge works on a left-hand or right-hand door; you just orient it and drop the pin in from the top. The only choices on the order are the finish, polished stainless or brushed stainless.

Check the corner first. The Delaney RH35xx is a 3-1/2 inch by 3-1/2 inch bulk steel residential hinge pair for interior use with a 5/8 inch radius corner, so it seats in a radiused mortise rather than the square corner mortise the Deltana SS35 fits. The Delaney is also a steel interior residential hinge, while the SS35 is a stainless steel unit rated commercial and built for waterside and outdoor exposure. For an exterior opening or a square corner prep, the two are not interchangeable.

The Schlage Residential S3P1010 is a 3.5 inch by 3.5 inch square corner plain bearing mortise hinge sold as a pack of three, rated medium duty. The Deltana SS35 matches on size, square corners, plain bearing and full mortise mounting, and is supplied as a pair in stainless steel. The count is the practical difference on a job: three-hinge openings take one S3P1010 pack, while the SS35 is ordered by the pair. Material also differs - the SS35 is stainless steel, which is why it is used on waterside and outdoor openings.

They are different bearing types. The Ives 3CB1 is a 3-knuckle concealed bearing full mortise hinge in steel, rated medium duty, and the Ives 3CB1HW is the heavy weight version of that concealed bearing 3-knuckle full mortise design. The Deltana SS35 is a plain bearing full mortise hinge in stainless steel. All three mount full mortise, so the prep concept is the same, but a concealed bearing knuckle and a plain bearing knuckle are not the same product - specify by the bearing the drawing calls for.

A Deltana SS35 is a plain bearing hinge with no spring, so it will not close the door. 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. Note the size step up from 3-1/2 inch - the frame and door must be prepped for the larger leaf, so confirm the mortise before substituting.

The Deltana SS35 mounts full mortise, so both leaves need mortising into door and frame. Where the frame cannot be mortised, the Hager 1129 is a half mortise plain bearing commercial hinge at 4-1/2 inch standard weight steel, keeping the plain bearing action. For a fully surface applied condition, the Hager 990 STEEL is a full surface hinge at 3 inch by 4 inch with a welded tip, also plain bearing and heavy duty. Both change the mounting method, so verify the door and frame condition before ordering.

Both finishes are stocked on the same SS35 hinge, so you can standardize the hinge across a property and pick the finish per opening. Polished stainless is the bright, mirror-like face; brushed stainless is the satin grain that hides fingerprints and scratching, which is why it's the usual pick on high-touch and back-of-house doors. The hinge itself, size, square corners, plain bearing, stainless base, is identical either way.

The Delaney RH45xx is a 4 inch by 4 inch bulk residential hinge pair for exterior use with a 5/8 inch radius corner. It matches the pair packaging of the Deltana SS35 and is intended for exterior openings, but it steps up to 4 inch leaves and uses a radius corner rather than the square corners of the SS35. If the doors are already routed square at 3-1/2 inch, the SS35 stays the fit; the RH45xx suits 4 inch radiused preps.