Deltana DSB4540-BT 4-1/2" x 4" Square Hinges (Pair), Ball Tipped, Solid Brass

Square corners. That matters on a retrofit: a square corner hinge drops into a mortise cut with a chisel or a square-corner router template, but it will not seat properly in a pocket routed with the common 5/8 inch or 1/4 inch radius. If your existing prep has rounded corners, look at a radius hinge instead, such as the Delaney 4 x 4 residential exterior hinge with a 5/8 inch radius or the Orca 4014 Series 4 x 4 with a 1/4 inch radius.

No. The DSB4540-BT is classed residential and uses a plain bearing, not a ball or concealed bearing, so it isn't the hinge for a high-traffic or door-closer-equipped opening. For commercial openings, a bearing hinge is what you want: the Ives 3CB1HW is a heavy weight 3-knuckle concealed bearing full mortise hinge, and the Stanley FBB191 is a 5-knuckle full mortise standard weight in 4-1/2 x 4-1/2. Keep the Deltana for interior and residential entry doors where appearance leads.

No, the DSB4540-BT is not an NRP hinge, so the pin can be taken out from the hinge side. On an outswing exterior door where the barrels are accessible from outside, that is a security concern and you'd want a non-removable pin or a security stud. The Hager BB1168-NRP is a full mortise ball bearing hinge built with a non-removable pin for exactly that situation.

Not as a drop-in. At 4-1/2 by 4 inches, the DSB4540-BT is a full inch taller than a 3-1/2 inch hinge, so both the door edge and the jamb mortise have to be lengthened and the screw holes will not line up. If you want to keep the existing prep, stay at 3-1/2 inch square corner, such as the Emtek 91013 residential plain bearing pair or the Schlage Residential S3P1010 3-1/2 x 3-1/2 square corner set of three.

The DSB4540-BT is a solid brass plain bearing hinge rated for residential use with square corners. For a commercial opening at the same 4-1/2 inch size with square corners, the Orca Hardware 3535 Series is a 4-1/2 inch by 4-1/2 inch square corner ball bearing commercial hinge at a medium duty level, and the Stanley Security FBB191 is a 5-knuckle full mortise standard weight hinge at 4.5 inch by 4.5 inch rated heavy duty. Note the width difference: the Deltana measures 4-1/2 inch by 4 inch, so a 4-1/2 by 4-1/2 peer will not drop into the same mortise without re-routing the jamb and door edge.

The DSB4540-BT is not a non-removable pin hinge, so on an outswing door the pin is accessible from the exterior side. For that condition the Hager BB1168-NRP is a non-removable pin full mortise ball bearing hinge rated heavy duty. It is a different construction from the solid brass Deltana, so confirm leaf size and finish against the opening before swapping.

No. The DSB4540-BT is a plain bearing full mortise hinge with no spring and no conductor. For a self-closing opening, the Stanley Security 2060R is a full mortise spring hinge with square corners at 4.5 inch by 4.5 inch, rated heavy duty. To carry power through the hinge, the Command Access ETH-CB70 is an energy transfer hinge with a 3 knuckle standard weight steel base, and the Stanley CECB1900R54L is a three knuckle concealed bearing concealed conductor hinge, steel full mortise, standard weight, 4-1/2 inch by 4-1/2 inch square corner, left-handed, 4-wire.

The DSB4540-BT is sold as a pair, two hinges. A typical residential door on 4-1/2 inch hinges uses three per leaf, so plan on ordering two pairs per door and keeping the spare, or order a hinge sold in threes if you want an exact count per door.

Solid brass, both base material and substrate. That is the practical difference between these and most of the residential hinges sold at this size: the Emtek 91013 and 92013 plain bearing hinges, for example, are plated steel. Solid brass doesn't rust, which is why it is the usual pick for exterior entry doors and coastal work, and the finish is on brass rather than over steel.

Full mortise means both leaves get recessed, one into the door edge and one into the jamb, so the hinge sits flush and only the barrel shows when the door is closed. The DSB4540-BT is a full mortise hinge, so yes, both sides need a routed or chiseled pocket. If the frame can't be cut, that calls for a different mounting method, such as the Hager 1129 half mortise hinge, which mortises into the door but surface-mounts to the frame.

Plain bearing is the limit here. The DSB4540-BT uses a plain bearing, which handles normal residential door weight and frequency but wears faster under a closer or on a heavy slab that gets constant use. For those openings, step up to a ball bearing hinge, for instance the Emtek 94013 heavy duty ball bearing pair or the Orca 3535 Series 4-1/2 x 4-1/2 square corner ball bearing hinge.

Not directly. The DSB4540-BT leaf measures 4-1/2 inch by 4 inch, so the leaf height is 4-1/2 inch and a 4 inch by 4 inch hinge is a half inch shorter mortise. Peers at the 4 inch size include the Orca Hardware 4040 Series 4 inch by 4 inch square corner plain bearing commercial hinge and the Delaney CH401X 4 inch by 4 inch commercial ball bearing hinge with square corners. Both share the square corner prep of the Deltana but require a shorter mortise, which means filling or re-cutting if the door is already routed for 4-1/2 inch leaves.

The DSB4540-BT uses plain bearings, which suit residential traffic. Where a door cycles harder, ball bearing and concealed bearing peers carry the load on raceways instead of knuckle-on-knuckle contact: the Emtek 94013 is a heavy duty ball bearing hinge pair in plated steel with square corners at 3-1/2 inch by 3-1/2 inch, and the Ives 3CB1HW is a steel heavy weight concealed bearing full mortise hinge with 3 knuckles rated heavy duty. Match the leaf size to the existing mortise before ordering.

Several. The DSB4540-BT is a full mortise hinge, meaning both leaves recess into the door edge and the jamb. The Hager 1129 is a half mortise plain bearing commercial hinge at 4-1/2 inch, which mortises into the door but surface-applies to the frame, and the Hager 990 STEEL is a full surface prison hinge at 3 inch by 4 inch with a welded tip. The BEST DAP-3 is a double acting pivot for commercial interior doors rather than a hinge at all. None of these drop into a full mortise prep.

The DSB4540-BT is a solid brass ball tipped hinge sold as a pair, offered in a polished nickel finish, at 4-1/2 inch by 4 inch. On the decorative side at the same leaf height, the McKinney SQ3331 is a square barrel 2-knuckle decorative hinge at 4-1/2 inch by 4-1/2 inch, rated standard duty. The SQ3331 differs in barrel styling and is a half inch wider, so it needs a wider mortise than the Deltana.

The DSB4540-BT is solid brass throughout, which is inherently non-ferrous. If a commercial-style non-ferrous hinge is preferred, the McKinney T2314 is a non ferrous hinge, standard weight, 5 knuckle, rated medium duty. Steel-base peers such as the Emtek 94013 plated steel ball bearing pair are ferrous and are the ones to avoid in that environment.

Polished Nickel is the finish offered on the DSB4540-BT. If you are matching levers, escutcheons or a deadbolt already installed in polished nickel, the ball tips give you a visible decorative element that reads with that trim rather than disappearing into the jamb.

No. A five-knuckle full mortise butt hinge like this is non-handed, so one pair works on a left or right hand door. Handing only becomes an ordering decision on hinges with something directional built in, like the Stanley CECB1900R54L electrified hinge, which is specified left-handed with a 4-wire harness.

The DSB4540-BT has square corners, which requires a chisel-cut or square-routed mortise. Other square corner options include the Emtek 91013 and Emtek 92013 plain bearing pairs in plated steel at 3-1/2 inch by 3-1/2 inch, the Emtek 96213 heavy duty pair at 3-1/2 inch by 3-1/2 inch, and the Ives 1010RP steel plain bearing residential hinges sold as a set of three. If the existing mortise is radius cut instead, the Delaney RH35xx at 3-1/2 inch by 3-1/2 inch and the Delaney RH45xx exterior residential pair at 4 inch by 4 inch both use a 5/8 inch radius.