Delaney 3-1/2" x 3-1/2" Bulk Steel Residential Hinges Interior, 5/8" Radius (Pair)

The Delaney 3-1/2 x 3-1/2 inch hinge is a full mortise hinge with 5/8 inch radius corners, which is the corner profile most residential interior doors and split jambs are routed for on a 3-1/2 inch leaf. If the existing hinge pockets have square corners, these won't drop in without rechiseling the corners, and a square corner hinge of the same size is the better swap.

Delaney's 3-1/2 inch residential hinge is priced and sold by the pair, so one unit is two hinges: enough for two of the three leaves a typical interior door uses. Order two pairs per door if you're hanging three hinges per opening. Number 9 by 3/4 inch wood screws come supplied, so nothing extra is needed for a wood jamb.

These are residential-rated interior hinges in 0.087 inch gauge steel. For bedroom, bath, and closet doors in apartments and single family units, that's the right hinge. Entry doors, corridor doors, and anything on a closer or in high-traffic commercial service want a ball bearing commercial hinge instead, like the Orca Hardware 4-1/2 x 4-1/2 square corner ball bearing commercial hinge or the Don-Jo HWBB74545 heavy weight ball bearing hinge.

It's the corner shape of the leaf, and it has to match the mortise. A 5/8 inch radius leaf is rounded to suit a pocket cut with a router template, which is how most prehung residential doors and jambs are machined. Square corners suit a pocket chiseled square, common on older solid wood jambs and on commercial hollow metal frames. Delaney's 3-1/2 inch hinge is the 5/8 inch radius version; if your pocket is square, look at a 3-1/2 x 3-1/2 square corner residential hinge such as the Deltana DSB35 or the Emtek 91013 instead.

Delaney's 3-1/2 inch residential hinge is built for interior wood doors and wood jambs, and it ships with number 9 by 3/4 inch wood screws. For hollow metal frames and rated openings, go to a commercial full mortise hinge with the appropriate bearing, such as the Ives 3CB1 three knuckle concealed bearing full mortise hinge or the Hager BB1168 non-removable pin ball bearing hinge.

No. The Delaney hinge is 3-1/2 by 3-1/2 inches, and swapping down from a 4 inch hinge leaves a gap in the mortise and moves the screw holes. Match the size that's already in the door. For a 4 inch replacement, the Orca Hardware 4 x 4 square corner plain bearing or the 4 x 4 with 1/4 inch radius corners are the commercial equivalents, and for a 4 x 4 with 5/8 inch radius corners the Deltana DE44R5TA is a 4 x 4 x 5/8 inch radius steel hinge.

The Delaney interior residential hinge is a 3-1/2 inch by 3-1/2 inch steel full mortise hinge with 5/8 inch radius corners. If the existing mortises in the jamb are cut square, the Deltana DSB35 is a 3-1/2 inch by 3-1/2 inch square hinge for residential use, and the Emtek 91013 is a residential plain bearing hinge in the same 3-1/2 inch by 3-1/2 inch size with square corners in plated steel. Corner shape has to match the mortise already routed in the door and frame, so confirm which the opening has before ordering.

The Delaney 3-1/2 inch by 3-1/2 inch hinge is a residential grade steel hinge in 0.087 inch gauge. For a heavier leaf or an opening that cycles constantly, the Emtek 94013 is a heavy duty ball bearing hinge in the same 3-1/2 inch by 3-1/2 inch size with square corners in plated steel, and the Emtek 92013 is a heavy duty plain bearing hinge in that same size. Both keep the 3-1/2 inch leaf so the existing mortise depth and screw pattern stay in play; the corners are square rather than radius.

The Delaney 3-1/2 inch by 3-1/2 inch steel hinge carries a 5/8 inch corner radius and is built for residential interior doors. Orca Hardware makes a 3.5 inch by 3.5 inch radius corner plain bearing commercial hinge in its 3514 Series, rated medium duty, though its corner radius is 1/4 inch rather than 5/8 inch. Radius size is not interchangeable in an existing mortise, so match the radius the frame was cut for.

Bulk packaging is how these ship: 50 pair per carton, which covers roughly 16 three-hinge doors per carton. Buying one finish by the carton is the usual move for a property manager standardizing corridor-side bedroom and closet doors across units, since every door then takes the same 3-1/2 inch radius-corner hinge.

No handing to specify. A full mortise butt hinge like the 3-1/2 inch Delaney is symmetrical and works on a left or right hand door either way. What you do specify is the finish, and whether you need one pair or several per opening.

For a standard interior door in a home or apartment, 0.087 inch steel on a 3-1/2 inch leaf carries it fine with three hinges per door. Heavier solid core slabs and doors that get slammed daily are better served by a heavy duty 3-1/2 inch hinge, for example the Emtek 92013 heavy duty plain bearing or the Emtek 94013 heavy duty ball bearing, both in the same 3-1/2 x 3-1/2 square corner size.

The Delaney interior hinge is sold only in the 3-1/2 inch by 3-1/2 inch size. For a wider leaf, the Deltana DE44R5TA is a 4 inch by 4 inch steel security hinge with a 5/8 inch corner radius sold by the pair, which carries the same radius as the Delaney. In square corner, the Orca 4040 Series is a 4 inch by 4 inch square corner plain bearing commercial hinge and the Deltana CSB45N is a 4-1/2 inch by 4-1/2 inch square hinge pair with a non-removable pin. Leaf width should suit the door thickness and how far the door must clear the trim.

The Delaney 3-1/2 inch by 3-1/2 inch is a full mortise steel hinge in 0.087 inch gauge for interior residential doors. Bearing hinges put a bearing between the knuckles to carry weight and cycles: the Emtek 94013 is a heavy duty ball bearing hinge in the same 3-1/2 inch by 3-1/2 inch size with square corners, and on the commercial side the Ives 3CB1 is a 3-knuckle concealed bearing full mortise hinge rated medium duty. Bearing hinges suit heavier leaves and higher cycle counts; the Delaney suits a standard interior residential door.

The Delaney 3-1/2 inch by 3-1/2 inch full mortise hinge is a standard butt hinge with no closing spring. For a door that must return to the frame on its own, the Stanley Security 2060R is a full mortise spring hinge with square corners in 4.5 inch by 4.5 inch on a ferrous steel base, rated heavy duty. That is a larger leaf and a square corner, so the mortise will not match a 5/8 inch radius 3-1/2 inch cut without rework.

Both are residential butt hinge pairs, but the leaf size and corner differ. The Delaney is 3-1/2 inch by 3-1/2 inch steel with 5/8 inch radius corners, supplied with #9 x 3/4 inch wood screws. The Deltana DSB3 is a 3 inch by 3 inch square hinge sold by the pair. A 3 inch hinge sits in a smaller mortise than a 3-1/2 inch one, so the two are not swaps for each other on an existing door.

No. The Delaney 3-1/2 inch by 3-1/2 inch is a full mortise hinge, meaning both leaves are let into pockets routed in the door edge and the jamb. A half mortise hinge such as the Hager 1129, a half mortise plain bearing commercial hinge in 4-1/2 inch standard weight steel, mortises into only one side and screws to the face of the other. A full surface hinge such as the Hager 990 STEEL, a 3 inch by 4 inch full surface hinge with a welded tip, mounts entirely on the faces with no mortise at all. The prep on the door and frame decides which type applies, not the size.

The Delaney 3-1/2 inch by 3-1/2 inch steel hinge is rated for residential use and comes 50 pair per carton, which suits bulk interior door work. Where a facility wants a commercial line instead, the Ives 3CB1 is a 3-knuckle concealed bearing full mortise hinge rated medium duty, the McKinney MP79 MacPro is a 5-knuckle full mortise hinge in standard weight, and the Stanley FBB191 is a 5-knuckle full mortise standard weight hinge in 4-1/2 inch by 4-1/2 inch. The Ives and McKinney are full mortise like the Delaney, so the mounting method is the same even though the duty rating is not.