Deltana S4404-UN 4" x 4" x Square x 1/4" Radius Corner Hinges, Unassembled, Steel (Pair)

Unassembled means the two leaves and the pin ship loose rather than knuckled together, so you set the leaf on the door, set the other in the frame, and drop the pin to join them. The S4404-UN is sold as a pair, so one box covers two of the three hinges a typical commercial door leaf needs. Order accordingly if you are hanging a full door.

It fits an existing 4 x 4 mortise only if that mortise is cut with 1/4 inch radius corners on one side and square corners on the other. The S4404-UN is a 1/4 inch radius by square corner hinge, which is the pattern a router template cuts in a wood door paired with a square-cut hollow metal frame. If your existing mortise is square on both sides, or cut to a 5/8 inch radius like most residential hinges, this leaf will not seat flush without recutting.

Plain bearing is what the S4404-UN uses, and Deltana rates it for commercial use. Plain bearing suits interior openings with moderate traffic and no door closer. Once you hang a closer on the door, or the opening sees constant traffic like a corridor or a tenant entry, move to a bearing hinge: the Orca Hardware 3535 Series is a 4-1/2 x 4-1/2 square corner ball bearing commercial hinge, and the Don-Jo HWBB84545 is a heavy weight full mortise ball bearing hinge in 4-1/2 x 4-1/2.

The S4404-UN is not supplied with a non-removable pin. For an outswing opening where the barrel is on the secure side, the Hager BB1168 is a non-removable pin full mortise ball bearing hinge rated heavy duty. That is a different bearing type from the plain bearing S4404-UN and a different pin arrangement, so specify the BB1168 when the NRP requirement is on the drawing.

The Orca Hardware 4014 Series is a 4 inch by 4 inch plain bearing commercial hinge with 1/4 inch radius corners, which matches the S4404-UN on size, bearing type and corner treatment. The S4404-UN carries 1/4 inch radius x square corners, so it can drop into either a radius-prepped or a square-prepped mortise, while the Orca 4014 is specified as a radius corner hinge only. If your existing mortises are square corner, the Orca 4040 Series is the 4 inch by 4 inch square corner plain bearing commercial hinge in that same family.

No, it is a mechanical full mortise hinge with no wiring path. To carry power through the hinge, use an energy transfer hinge: the Command Access ETH-BB68 is a 5 knuckle heavy duty steel base energy transfer hinge, and the ETH-CB70 is the 3 knuckle standard weight version. The BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect. If you also need door position monitoring, the Command Access ETM-BB68 adds an integrated door position switch.

Move to a ball bearing or concealed bearing hinge. In 4 inch by 4 inch, the Delaney CH401X is a commercial ball bearing hinge with square corners. At 4-1/2 inch by 4-1/2 inch, the Orca 3535 Series is a square corner ball bearing commercial hinge, and the Don-Jo HWBB74545 is a heavy weight full mortise ball bearing hinge in satin chrome. For concealed bearings on a medium duty commercial opening, the Ives 3CB1 is a 3 knuckle concealed bearing full mortise hinge. Note that going to 4-1/2 inch changes the mortise, so only the Delaney CH401X and a square corner prep keep the same 4 inch cutout.

The S4404-UN is a 4 inch by 4 inch hinge and will not fill a 4-1/2 inch mortise. In 4-1/2 inch by 4-1/2 inch, the Orca 3535 Series is a square corner ball bearing commercial hinge, the Stanley FBB191 is a 5 knuckle full mortise standard weight hinge, and the McKinney SQ3331 is a square barrel 2 knuckle decorative hinge. For heavier leaves at that size, the Don-Jo HWBB84545 is a heavy weight full mortise ball bearing hinge in satin chrome.

Three common near-misses. The Orca 3514 Series is a 1/4 inch radius corner plain bearing commercial hinge like the S4404-UN but measures 3-1/2 inch by 3-1/2 inch, a smaller leaf. The Schlage Residential S3P1010 is a square corner plain bearing mortise hinge in 3-1/2 inch by 3-1/2 inch sold in packs of three, and the Ives 1010RP is a steel plain bearing residential hinge with square corners in sets of three, so both differ in duty positioning and pack quantity from the S4404-UN pair. Matching the bearing type alone is not enough; the leaf size, corner prep and pack count all have to line up.

No handing to specify. A full mortise butt hinge like the S4404-UN is non-handed: the pin drops in from the top and the same hinge works on a left or right swinging door. Handing only comes into play on hinges built with a fixed conductor or wiring, such as the Stanley CECB1900R54L, which is ordered left-handed.

Deltana lists the S4404-UN material as stainless steel over a steel substrate. For an opening with real salt or moisture exposure, that matters more than the finish coat, since a plated carbon steel hinge will bleed rust at the knuckle first. Note the plain bearing construction is still the limit on traffic, not the material.

4 x 4 covers a standard 1-3/4 inch thick door up to about 36 inches wide at normal weight, which is the bulk of interior commercial openings. Go to 4-1/2 inch when the door is thicker, wider than 36 inches, or heavy such as a lead-lined or solid core slab, because the wider leaf gets you more screw purchase and clears thicker trim. In that size the Don-Jo HWBB74545 and the Stanley FBB191 are both 4-1/2 x 4-1/2 full mortise options.

Yes, and it is a common move for landlords who want one hinge across the whole building. The S4404-UN is a commercial-rated 4 x 4 plain bearing hinge, a step above a typical residential butt. The catch is the corner: most residential doors and prehung frames are cut with a 5/8 inch radius, and this hinge is 1/4 inch radius by square. If you are replacing residential hinges one for one, check the existing corner shape first. Purpose-built residential options in the same 4 inch size include the Delaney 4 x 4 exterior residential hinge with a 5/8 inch radius.

The S4404-UN is specified for commercial use with a plain bearing. If the opening is genuinely residential, the Delaney 4 inch by 4 inch bulk residential hinge for interior use is sold in pairs, and the Delaney exterior residential hinge is the 4 inch by 4 inch pair for exterior openings; both carry 5/8 inch radius corners rather than the 1/4 inch radius x square corners of the S4404-UN, so the mortise prep is not interchangeable. Emtek's 91013 residential plain bearing pair and 92013 heavy duty plain bearing pair are plated steel with square corners in 3-1/2 inch by 3-1/2 inch, a smaller leaf than the 4 inch S4404-UN.

The S4404-UN is full mortise, meaning both leaves are let into the door and the frame. The Hager 1129 is a half mortise plain bearing commercial hinge in 4-1/2 inch standard weight, used when only one leaf mortises and the other surface applies. The Hager 990 STEEL is a full surface prison hinge, 3 inch by 4 inch with a welded tip, which applies to the face of both door and frame. Those are different preps entirely, so they are not drop-in alternates for a door already mortised for a 4 inch by 4 inch full mortise hinge.

The S4404-UN is a plain bearing hinge with no spring. The Stanley 2060R is a full mortise spring hinge with square corners in 4-1/2 inch by 4-1/2 inch on a ferrous steel base, rated heavy duty, and it provides the closing force from the hinge itself. Because it is 4-1/2 inch, the mortise differs from a 4 inch by 4 inch prep.

Not for the same opening. The S4404-UN is a full mortise hinge for a door that swings one way. The BEST DAP-3 is a heavy duty double acting pivot for commercial interior doors, which lets the door swing in both directions and mounts at the top and bottom rather than along the hinge stile. Choose the pivot only when the door is meant to swing both ways.

The McKinney T2314 is a non ferrous hinge in standard weight with 5 knuckles, rated medium duty, which is the direction to go when a ferrous base is a problem for the environment. The S4404-UN is built on a steel substrate and is offered in a US3/4 finish and a 600 primed for painting version, the latter intended to be coated after install.

Two: US3/4, and 600 primed for painting. The 600 option is the one to take when the hinges have to match a painted frame or a specified color, since it ships with a paint-ready primer coat rather than a plated finish. If you need brushed or plated hardware to match existing lever trim, US3/4 is the only plated choice in the S4404-UN.