Delaney 3-1/2" x 3-1/2" Spring Hinges, 5/8" Radius (Pair)

Only if the existing hinge is also a 3-1/2 x 3-1/2 with 5/8 inch radius corners. The Delaney spring hinge is a full mortise hinge with 5/8 radius corners, so it needs a pocket routed with that same corner radius. If your current hinge has square corners or a 1/4 inch radius, the leaf won't sit flush in the cutout. Measure the existing leaf corner before ordering: 5/8 radius is the common radius on residential prehung doors, 1/4 radius on many commercial hollow metal frames.

You get two hinges per box, packed as one pair. A standard 3-1/2 inch hinge door usually carries three hinges, so for a full door you'd typically order a pair plus a third hinge, or run two spring hinges and one standard hinge in the same size and corner radius. Common practice is to put the spring hinges at the top and bottom positions. Bulk carton is 20 pair, 28 lbs.

They ship with #10 x 1/2 inch machine screws, 10-24NC thread. Machine screws thread into a tapped metal frame. If you're hanging on a wood jamb, you'll need wood screws instead, and on a spring hinge you want at least one long screw per leaf into the stud, because the spring is constantly pulling against the jamb.

No. The Delaney 3-1/2 x 3-1/2 spring hinge is a residential-duty hinge in 0.106 inch steel, sized for interior and light passage doors. For a heavier or higher-traffic opening, step up to a 4-1/2 inch spring hinge such as the Stanley Security 2060R full mortise spring hinge in 4.5 x 4.5 square corner, which is rated heavy duty. Note that one is a square corner hinge, not 5/8 radius, so the mortise prep is different.

The Delaney 3-1/2 inch by 3-1/2 inch spring hinge is UL listed for use with fire rated doors, which is the reason it is specified on rated openings that need positive latching without a surface closer. Among 3-1/2 inch by 3-1/2 inch alternatives, the Emtek 94013 is a heavy duty ball bearing pair and the Emtek 92013 is a heavy duty plain bearing pair, both with square corners; neither is a self closing hinge, so a rated opening using them still needs a listed door closer to satisfy the self closing requirement. On a rated opening, verify the hinge and closer combination against the door manufacturer's listing.

The Delaney 3-1/2 inch by 3-1/2 inch spring hinge is cut with 5/8 inch radius corners, so it seats in a routed pocket with rounded corners. For a square corner mortise at the same 3-1/2 inch by 3-1/2 inch leaf size, the Stanley Security 2060R is a full mortise square corner spring hinge, though it is a 4.5 inch by 4.5 inch leaf and needs a larger pocket. If the pocket is square and must stay 3-1/2 inch, the Emtek 96213 and Emtek 91013 are 3-1/2 inch by 3-1/2 inch hinges with square corners, but they are not spring hinges and will not close the door on their own - the opening would need a separate closer.

The Delaney spring hinge is a 3 knuckle full mortise unit in 0.106 inch steel at a 3-1/2 inch by 3-1/2 inch leaf, sized for residential weight doors. For a heavier leaf, the Stanley Security 2060R is a heavy duty full mortise spring hinge with a ferrous steel base at 4.5 inch by 4.5 inch, which spreads the load over a taller leaf and a wider throw. Both are self closing spring hinges; the difference is leaf size and duty level, so confirm the door pocket and the door weight before switching.

Only if the opening does not need to self close. The Delaney 3-1/2 inch spring hinge carries a spring in the barrel for automatic closing of doors. The Schlage Residential S3P1010 is a 3.5 inch by 3.5 inch square corner plain bearing mortise hinge sold in packs of three, and the Emtek 91013 is a 3-1/2 inch by 3-1/2 inch residential plain bearing pair - both hang the door and swing freely, with no closing force. Swapping to either means the door stays wherever it is left, which matters on any opening where the door is being held closed for a reason.

A spring hinge does the closing from inside the hinge pocket, so nothing is mounted on the door face or the frame head. That is what you want on an apartment unit door, a garage-to-house door, or anywhere a surface closer would look wrong or get in the way. A closer gives you controlled sweep and latch speed and adjustable backcheck; a spring hinge just pulls the door shut. For a heavy commercial door with high traffic, a closer is the right call. The Delaney spring hinge is a residential-duty part at 3-1/2 x 3-1/2.

The barrel. A spring hinge houses a coil spring inside the knuckle, so it drives the door closed on its own; a plain butt hinge just swings. The tradeoff is that the spring barrel is a fixed, non-adjustable-looking cylinder and the door will pull shut whether you want it to or not. If you want a plain 3-1/2 x 3-1/2 hinge in the same size, the Emtek 91013 residential plain bearing pair and the Deltana DSB35 residential pair are both 3-1/2 x 3-1/2, but both have square corners rather than 5/8 radius.

No. The Delaney 3-1/2 spring hinge is a full mortise butt hinge, symmetrical top to bottom, so the same pair works on a left hand or right hand door. You set the closing direction when you tension the spring during install, not when you order.

No, they do different jobs on the same door. The Command Access ETH-CB70 is a 3 knuckle standard weight steel base energy transfer hinge and the ETM-CB70 adds door position sensing - those carry power or signal from frame to door for an electrified lock. The Delaney 3-1/2 inch spring hinge is a mechanical 3 knuckle spring hinge for automatic closing of doors and carries no wiring. An access controlled opening that also has to self close typically uses a transfer hinge in one position and a closing device elsewhere, not one hinge doing both.

Both are radius corner steel hinges sold as a pair. The Deltana DE44R5TA is 4 inch by 4 inch with a 5/8 inch radius, security type with a TT tip, so it matches the same 5/8 inch corner profile as the Delaney but on a larger leaf and with a security pin arrangement rather than a spring. The Delaney is 3-1/2 inch by 3-1/2 inch with 5/8 inch radius corners and a spring in the barrel for automatic closing. If the requirement is a door that closes itself, the Deltana is not a substitute; if the requirement is an outswing door where the pin must not be pulled, the Deltana addresses that and the Delaney does not.

Yes. The Orca Hardware 3514 Series is a 3.5 inch by 3.5 inch plain bearing commercial hinge cut to a 1/4 inch radius corner, medium duty. That is a different pocket profile from the Delaney spring hinge, which uses a 5/8 inch radius, so the two are not interchangeable in an existing mortise - a 1/4 inch radius hinge leaves a gap at the corners of a 5/8 inch pocket. Check the radius of the existing router template before ordering either.

They solve a different problem. The Delaney 3-1/2 inch spring hinge is a 3 knuckle steel hinge with a spring for automatic closing; the bearing type is what carries a heavy or frequently cycled door. The Orca Hardware 3535 Series is a 4-1/2 inch by 4-1/2 inch square corner ball bearing commercial hinge and the Ives 3CB1HW is a steel heavy weight 3 knuckle concealed bearing full mortise hinge, both built for cycle life rather than closing force. On a high traffic opening that also has to self close, the usual arrangement is bearing hinges plus a door closer, or spring hinges sized to the door.

Where only some doors in a unit need to self close, the rest are usually hung on a plain hinge of the same leaf size so the pockets and screw pattern stay uniform. At 3-1/2 inch by 3-1/2 inch, the Deltana DSB35 is a residential square hinge sold as a pair and the Ives 1010RP is a steel plain bearing residential hinge with square corners sold in sets of three. Both are square corner, so they suit square pockets; the Delaney spring hinge is 5/8 inch radius and belongs in a radius pocket, which means a mixed job needs the two pocket profiles kept straight door by door.

Both are 3-1/2 inch by 3-1/2 inch pairs in plated or steel construction for residential duty. The Emtek 91013 is a residential plain bearing hinge with square corners; the Delaney is a residential spring hinge with 5/8 inch radius corners, 0.106 inch steel, and #10 x 1/2 inch machine screws standard. For a garage to house door or any door that must not be left standing open, the Delaney closes it; for bedroom and closet doors where the door should stay where it is put, the Emtek is the simpler hinge.

A spring hinge such as the Delaney 3-1/2 inch carries its spring in the barrel and is specified for automatic closing, not for pin security. Where the door swings out and the pin is reachable, the Hager BB1168 NRP is a non-removable pin full mortise ball bearing heavy duty hinge, and the Deltana CSB45N is a 4-1/2 inch by 4-1/2 inch square hinge pair with a non-removable pin. Both are larger leaf sizes than the Delaney, so the pocket has to be cut or the frame prepped accordingly.

Two: US26D dull chrome and 613 satin bronze oil-rubbed. US26D is the satin chrome look that matches most builder-grade lever and knob sets; 613 is the dark oil-rubbed bronze. If you're matching a fleet of units, pick the one already on the other doors, since the hinge is visible on the pull side.

On a narrow stile or a lightweight door, the Deltana DSB3 is a 3 inch by 3 inch square hinge sold as a pair, one size down from the 3-1/2 inch by 3-1/2 inch leaf of the Delaney spring hinge. The DSB3 is a plain square corner hinge with no spring, so a 3 inch opening that still has to close on its own would need a separate closing device rather than a smaller spring hinge.

Not in the same pocket without checking size. The Ives 3CB1 is a 3 knuckle concealed bearing full mortise hinge in medium duty commercial grade and the Hager 920 is a full mortise concealed plain bearing hinge with 2 knuckle steel construction - both hide the bearing inside the barrel and match a 3 knuckle appearance from the face. The Delaney is also a 3 knuckle full mortise hinge, but its barrel holds a spring, so the two look similar and behave differently: the concealed bearing hinges swing free, the Delaney pulls the door shut.

The McKinney MP79 MacPro is a 5 knuckle standard weight full mortise hinge and the MPB79 is the same 5 knuckle standard weight pattern; the Delaney spring hinge is a 3 knuckle full mortise hinge in 0.106 inch steel. Knuckle count changes the barrel appearance and the way load is distributed along the leaf, and only the Delaney closes the door on its own. Where a job is standardizing on a 5 knuckle look across an entire corridor, mixing in a 3 knuckle spring hinge on the doors that need self closing is a visible difference worth deciding on up front.