Deltana DSH35 Single Action Spring Hinge (Pair), 3-1/2" x 3-1/2" Square Corner, Steel

The DSH35 is a self-closing spring hinge, so the spring lives inside the hinge barrel and pulls the door shut on its own. No overhead closer, no floor closer, nothing on the face of the door. Spring tension is adjustable, so you can tune how hard it pulls once the hinges are hung. It's a single action hinge, meaning the door swings one way only, not both. For a residential-style opening or a light commercial door where you want the door to shut every time and don't want hardware showing at the head, this is the way it gets done.

No NRP on the DSH35. On an out-swing exterior door the barrel sits on the outside, so a hinge without a non-removable pin feature leaves the leaf liftable from the exposed side. For an out-swing opening where that matters, plan on a security stud or a set screw pin, or hang the door on a hinge that carries NRP. On an in-swing door the barrel is protected and this is a non-issue.

Two in the set carry a listing in their identity. The Emtek 95013 is a UL listed pair of 3-1/2 inch by 3-1/2 inch square corner spring hinges in plated steel, matching a standard 3-1/2 inch square corner prep. The Design Hardware UL Spring Hinge is a medium duty listed option. Among the invisible types, the SOSS 216IC and SOSS 220IC are invisible spring closer hinges with a 20 minute fire rating. Confirm the rating on the door and frame label matches whichever hinge you specify.

The DSH35 ships as a pair, and a pair is not always the whole answer. On a standard opening you'll typically hang the door on three hinges: common practice is two spring hinges plus one plain bearing hinge, or all three spring so you can spread the tension. A heavier or taller leaf wants more spring, not more tension on two. Work out your hinge count for the door height first, then decide how many of those positions you want to be spring.

Both screw types are in the box: #9 x 3/4 inch wood screws for a wood jamb and #9 x 1/2 inch machine screws for a hollow metal frame with tapped hinge reinforcement. So the same pair covers a wood-jamb and a hollow-metal opening without a separate fastener order. If your steel frame isn't tapped, that's a drill-and-tap job before the hinge goes on, and no hinge in the category ships to solve it.

Steel, 0.097 inch leaf gauge, plain bearing, and rated commercial. That's a standard weight hinge: fine for a light commercial door, an interior office door, a storeroom, an apartment unit door. It is not a heavy duty or high frequency hinge. For a door that gets hammered all day, plain bearing is the limiting factor, and if you need heavy duty spring in the same job the SOSS 218IC and 220IC invisible spring closers are the heavy duty options.

Single action spring hinges are non-handed in the sense that the same hinge works on a left or right hand door, you just orient it to the swing. What you do need to get right is that single action means one direction of swing only. If you're hanging a door that has to push both ways, a cafe or a kitchen pass-through, this isn't the hinge for it. For a fleet of unit doors that all swing in, one part number covers every opening regardless of hand.

A spring hinge puts the closing force in the hinge barrel, so nothing shows at the head of the door and there's no arm to catch. A door closer mounts on the face or the frame and gives you real control: adjustable sweep speed, latch speed, backcheck, hold-open. The trade is that a spring hinge closes the door but doesn't govern how fast, so it can slam. Use spring hinges where appearance matters and the door is light, apartment doors, closets, interior office doors. Use a closer where you need controlled closing, ADA opening force, or hold-open.

The DSH35 is steel, and a Brushed Stainless finish is a plated appearance, not a stainless base. For a real stainless hinge on a coastal or wash-down opening, the Hager 1150 is a full mortise spring hinge in stainless steel, standard weight. The Hager 1250 is the same hinge in steel construction if you don't need the corrosion resistance. Pemko Markar's FS902 continuous spring loaded hinge is 304 stainless, though that's a continuous hinge for toilet partitions, not a butt hinge substitute.

They solve a different opening. The Deltana DSH35 is a 3-1/2 inch by 3-1/2 inch full-height-leaf spring hinge installed as a pair. The Pemko Markar FM400 and FM900 series and the Pemko FS402 and FS902 series are spring loaded continuous hinges for toilet partitions rated at an 80 lb load capacity, with the FS902 in 304 stainless steel. Those run the length of the partition door and are prepped and fastened as a continuous unit, not into two 3-1/2 inch mortises. Use the DSH35 for a conventional door with butt hinge preps and the Markar or FS series where the job is a restroom partition.

Visibility and duty level. The Deltana DSH35 is a surface-visible full mortise spring hinge with steel leaves at 3-1/2 inch by 3-1/2 inch and square corners. The SOSS 216IC and 220IC are invisible spring closer hinges carrying a 20 minute fire rating, and the SOSS 218IC is a 7 inch invisible spring closer requiring a 1-3/4 inch minimum door thickness; the 220IC is 7 inch and needs a 2 inch minimum door thickness. All three SOSS units are heavy duty. The SOSS hinges conceal entirely when the door is closed and route into the door edge and frame rather than into a butt hinge mortise, so they are a design and thickness decision, not a drop-in swap.

The BEST 2060R is a plain bearing spring hinge with a removable pin in square corners, standard weight and medium duty, and the BEST RD2060R is the same plain bearing spring hinge with a removable pin in a radius corner. The Deltana DSH35 is a plain bearing spring hinge and is not a non-removable pin model. If your security spec calls out a fixed or non-removable pin on out-swinging exterior doors, neither of these BEST models meets it, so check the pin requirement against the door swing before ordering.

Yes. The Deltana DSH35 uses a standard 3-1/2 inch square corner leaf pattern. Where the existing prep is a Z pattern, the Orca Hardware SPR4058Z is a 4 inch by 4 inch, 5/8 inch radius corner spring hinge built specifically with a Z hole pattern, medium duty in the SPR4058 series. Its non-Z equivalent is the Orca SPR4058, the same 4 inch by 4 inch, 5/8 inch radius corner hinge in the 4058 series. Lay a hinge template against the frame and confirm the hole layout before you commit, since a mismatched pattern means drilling and plugging.

The Deltana DSH35 is a commercial-rated plain bearing spring hinge in steel with a 0.097 leaf thickness. Peers in the same standard weight class include the Hager 1250 in steel construction and the McKinney 1502 in square corner full mortise standard weight, both medium duty. If the opening warrants more, the SOSS 216IC, 218IC, and 220IC invisible spring closers are heavy duty. Weigh the door leaf and count the daily cycles: standard weight suits typical interior commercial traffic, while a solid core or oversized door pushes toward the heavier options.

Eleven finishes across the DSH35: Oil Rubbed Bronze, Polished Nickel, Brushed Nickel, Antique Nickel, Paint Black, Polished Chrome, Brushed Chrome, Polished Brass, Brushed Brass, Antique Brass, and Brushed Stainless. That's a decorative-grade range, wider than the plated-steel finishes most commercial spring hinges offer, which is the reason to reach for this one when the hinge is visible and has to match levers and rosettes rather than just disappear.

Hager and Orca Hardware each cover the corner range. Hager offers the 1250 full mortise spring hinge in standard weight steel, the 1251 with 1/4 inch round corners, and the 1252 with 5/8 inch round corners, all medium duty; the 1150 is the stainless steel version in standard weight. Orca Hardware covers 4 inch by 4 inch with the SPR4040 square corner, the SPR4014 at 1/4 inch radius, and the SPR4058 at 5/8 inch radius. The Deltana DSH35 fills the 3-1/2 inch by 3-1/2 inch square corner position and is offered in eleven finishes including oil rubbed bronze, polished chrome, and antique brass, so a mixed-finish building can hold one part number at that size.