Deltana DSH4R5TT Single Action Spring Hinge (Pair), 4" x 4" x 5/8" Radius x Square Corners, Steel, TT, UL Listed

Spring hinges work in sets, and the DSH4R5TT ships as a pair. On a standard commercial opening a door hung on three hinges normally uses one or two spring hinges with the balance as standard bearing hinges, and heavier or wider doors take more spring hinges. The spring tension on these is adjustable, so you tension them after hanging until the door closes and latches on its own without slamming.

The DSH4R5TT is not built with a non-removable pin, so on an out-swinging exterior door where the hinge knuckles are exposed it does not by itself stop someone lifting the pin. For that opening you either need a hinge with an NRP set screw or a security stud, or you add a hinge pin stud or a door reinforcer. On in-swinging doors and interior openings where the knuckles sit on the secure side, it is a non-issue.

Orca Hardware's SPR4058 is a 4 x 4 spring hinge cut with 5/8 inch radius corners throughout, which is what you want when both the door and frame mortises are radiused. If both mortises are square, the Orca SPR4040 is the 4 x 4 square corner version. Both are medium duty. For a hole pattern change rather than a corner change, the Orca SPR4058Z is the same 5/8 radius corner size with a Z hole pattern.

The Orca Hardware SPR4058 is a 4 inch by 4 inch spring hinge with 5/8 inch radius corners, matching the DSH4R5TT on size and corner geometry. The Deltana DSH4R5TT is a single action spring hinge sold as a pair in 4 inch by 4 inch with 5/8 inch radius by square corners, steel, and is UL Listed. The Orca SPR4058 is rated medium duty. If the door prep is already cut for a 5/8 inch radius corner leaf at 4 inch by 4 inch, either part drops into the same mortise.

The Deltana DSH4R5TT is UL Listed and 4 inch by 4 inch. The Design Hardware UL Spring Hinge is a medium duty UL spring hinge. The Emtek 95013 is a UL Listed spring hinge pair in plated steel at 3-1/2 inch by 3-1/2 inch with square corners, from Emtek's UL Listed Spring Hinges series, so it suits a smaller prep with square corners. The SOSS 216IC and 220IC invisible spring closers carry a 20 minute fire rating.

The Deltana DSH4R5TT is built in steel. The Hager 1150 is a full mortise spring hinge in standard weight stainless steel, medium duty, which is the usual choice for exterior or wash-down openings. Hager's 1250 is the same full mortise spring hinge pattern in standard weight steel construction if stainless is not required.

No. The Deltana DSH4R5TT is a 4 inch by 4 inch hinge, so it will not fill a 4-1/2 inch mortise. The McKinney 1502 is a square corner full mortise spring hinge in standard weight at 4-1/2 inch by 4-1/2 inch, medium duty, which matches that prep. Confirm the corner style on the existing prep as well, since the McKinney 1502 is a square corner hinge.

No. The DSH4R5TT is a 4 x 4 full mortise hinge for a standard door and frame, not a partition. Toilet partition doors take a spring loaded continuous hinge sized for panel stock, such as the Pemko Markar FM400 or FM900 series or the Pemko FS402 series, each rated to an 80 lb load capacity. The FS902 is the 304 stainless version of the same idea for wet or corrosive rooms.

Each DSH4R5TT pair comes with #10 x 1 wood screws for the door side and #10 x 1/2 machine screws for a tapped hollow metal frame, so you are covered on both wood and metal without buying fasteners separately. The machine screws suit a frame already tapped for 12-24; if your frame is drilled but not tapped you will need to tap it or use appropriate anchors.

The DSH4R5TT is a plain bearing hinge in steel, rated commercial, with a 0.097 inch leaf thickness. Plain bearing is the standard weight construction and it holds up on normal office, apartment, and back-of-house doors. On a heavy or high-cycle opening, a full closer with standard ball bearing hinges controls the door better than spring hinges will over the long run.

A spring hinge such as the Deltana DSH4R5TT puts the closing force inside the hinge itself, so nothing hangs on the face of the door or the frame head. That makes it the choice on apartment entry doors, unit-to-corridor doors, and anywhere a surface closer would be ugly or get tampered with. What it will not do is control the swing speed or give you a latching check, backcheck, or hold open. If you need controlled closing on a heavy or exterior door, a surface closer is the correct device and the spring hinge is not a substitute for it.

The DSH4R5TT is steel through and through, both body and substrate, with a plated finish. That is fine for interior and protected exterior openings but it is not a corrosion-resistant hinge for a beachfront or pool-adjacent door. Where corrosion is the concern, a stainless steel spring hinge such as the Hager 1150 full mortise is the material to move to.

Only where the door can be prepped for a concealed hinge. The SOSS 216IC and 220IC are invisible spring closer hinges with a 20 minute fire rating, both heavy duty; the 220IC is 7 inch and requires a 2 inch minimum door thickness. The SOSS 218IC is a 7 inch heavy duty invisible spring closer with a 1-3/4 inch minimum door thickness. These rout into the door edge and jamb and leave no visible leaf, while the Deltana DSH4R5TT is a surface-visible full mortise hinge in a standard 4 inch by 4 inch butt prep and is UL Listed.

They are different products despite both being self-closing. The Deltana DSH4R5TT is a single action spring hinge sold in pairs, 4 inch by 4 inch, that mortises into a butt hinge prep. The Pemko Markar FM400 and FM900 series and the Pemko FS402 and FS902 series are spring loaded continuous hinges built for toilet partitions with an 80 lb load capacity, running the full height of the leaf rather than seating in a butt prep. The FS902 is 304 stainless steel. Specify the continuous hinges for partition doors, not for a door already cut for butt hinges.

The Deltana DSH4R5TT is not a non-removable pin hinge. If a removable pin is called out on the spec, the BEST 2060R is a plain bearing spring hinge with a removable pin in square corners, standard weight, and the BEST RD2060R is the same plain bearing removable pin spring hinge in a radius corner, standard weight, from BEST's Spring Hinges series. Both are medium duty. The Deltana DSH4R5TT also uses a plain bearing.

The Deltana DSH4R5TT is specified for commercial use in steel with a plain bearing. Most of the butt-style spring hinge peers sit at medium duty, including the Hager 1250, the McKinney 1502, and the Orca SPR4058. For a heavy duty rating the SOSS 216IC, 218IC, and 220IC invisible spring closers are heavy duty, though the 218IC needs a 1-3/4 inch minimum door thickness and the 220IC needs 2 inch, so the door has to be thick enough to take the rout.

Two finishes are offered on the DSH4R5TT: zinc dichromate and brushed brass. Zinc dichromate is the plain utility finish that disappears behind the door edge on back-of-house and service openings, and brushed brass is the one to specify when the hinge is visible and needs to match brass lever trim on the same door.

The DSH4R5TT is sold by the each and packs 50 to a case, which is the number to work from when you are standardizing a fleet of doors. Work out how many spring hinges each leaf takes, multiply by your door count, and buy in case quantity to keep one corner style and one finish across every opening so future replacements are a single line item.