Emtek 8071 Belmont 3-5/8" C-to-C Keyed Sideplate Lockset, Passage/Double Keyed - Brass Tubular

In most cases yes. The Belmont 8071 uses one standard 2-1/8 inch cross bore, which is the same prep a common residential knob or lever set uses, and the backset adjusts to either 2-3/8 or 2-3/4 inches to match what was drilled. What you do need to check is the sideplate: it is a 3-5/8 inch center-to-center plate, so the existing bore has to line up with that plate footprint and you will be covering more of the door face than a round rosette did.

Yes, and that is a decision to make before you order. The 8071 Belmont is a double cylinder entry lockset, meaning it takes a key from inside as well as outside. That stops someone reaching through adjacent glass to turn a thumbturn, but it also means nobody leaves without a key, which many jurisdictions restrict on a required egress door in occupied space. If you want a thumbturn inside, you want the single cylinder version instead, not this one.

Yes. Keying is a required choice on the 8071 and you can take them keyed alike so one key runs every door, or keyed different if each opening needs its own. If you are adding to an existing Emtek system, there is a field to give the key code so the new sets cut to the same key rather than arriving on a random bitting. For a property manager standardizing a building, keyed alike across a unit with a code on file is the way to handle turnover.

The Omnia D12036AC is the nearest peer: a double cylinder deadbolt lever lockset in solid brass with a sideplate design, matching the Emtek 8071 Belmont's double cylinder keyed function in a brass sideplate set. The Emtek 8071 Belmont is built on a 3-5/8 inch center-to-center sideplate and a tubular lock chassis, and the inside trim is chosen from Emtek's brass knob and lever styles, so the two differ in plate geometry and in how the trim is specified. Both key from outside and inside, which is the deciding behavior on a glass-panel or sidelight-adjacent door.

The Emtek 8071 Belmont is a double cylinder set, meaning it takes a key on both faces. Where a key on the egress side is unacceptable, the Omnia D12036A is a single cylinder deadbolt lever lockset in solid brass, keyed from one side only. This matters on any bedroom, corridor, or required egress door where a facility's code officer will not accept a key on the inside, and on rental units where a property manager does not want a tenant hunting for a key to leave.

No. The Omnia D12036PD is a double dummy set with plates, so it has no latch and no cylinder; it is surface-mounted trim for a door that does not latch, such as one leaf of a pair or a closet slab. The Emtek 8071 Belmont is a keyed entry lockset with a double cylinder function and a tubular chassis, supplied as a complete set with knob or lever, latch, and strike plate. The D12036PD is the right partner for an inactive leaf, not a replacement for a working entry.

No, it ships complete. The 8071 Belmont comes as a full set with the knob or lever you pick, the latch, and the strike plate. The inside trim is your choice from Emtek's brass knob and lever range, which includes the matching Belmont knob along with levers like the Cortina, Milano and Stuttgart and crystal knobs like the Windsor and Bristol. You are not sourcing a separate rose or spindle kit to finish the door.

Five finishes: Oil Rubbed Bronze (US10B), Satin Nickel (US15), Polished Brass Lifetime (US3), Unlacquered Brass (US3NL), and French Antique (US7). The distinction worth knowing is between US3 and US3NL. Lifetime polished brass is coated and holds its shine; unlacquered brass is bare and will patina over time, which is what you want if the rest of the openings are already living brass and you need them to age together.

The Belmont 8071 is a residential brass tubular lockset. It is the right call for a house, a townhome, or a decorative interior opening in a hospitality or multi-family setting where the look matters. For a commercial entrance carrying real traffic, a code-required egress door, or anywhere a fire rating is on the drawing, this is not the device to spec.

The 8071 Belmont is double cylinder only, keyed both sides. For a thumbturn inside, the Omnia D12036A is a single cylinder sideplate lever lockset in solid brass. That is the one to use on a bedroom-to-exterior door or anywhere a key-in-the-back-of-the-door situation would be a problem. Omnia also makes a matching non-functioning set, the D12036PD double dummy, for the inactive leaf of a pair.

Handing is required on the 8071 and you pick right hand or left hand. Stand outside the door, on the side you would use the key. If the hinges are on your right, it is right hand; hinges on your left, left hand. Get this wrong on a lever and the lever points the wrong way when it is installed.

It will not. The Emtek 8071 Belmont is a 3-5/8 inch center-to-center sideplate, a shorter plate than a 5-1/2 inch layout. The Omnia D12036PD is built on 5-1/2 inch center to center, so an opening already prepped and finished for that longer plate lines up with the longer geometry rather than the 3-5/8 inch Emtek. Measure the existing bore-to-bore spacing before ordering, because the plate length determines what old finish shadow and screw holes get covered.

The Omnia D12036A and D12036AC are lever locksets in solid brass, supplied as lever sets in single cylinder and double cylinder respectively, so the ordering decision is essentially which cylinder function you want. The Emtek 8071 Belmont requires a separate choice of inside knob or lever style from Emtek's brass designs, plus handing, backset, and finish, which gives more control over the look and adds specification steps. For a run of utility doors where appearance is settled, the Omnia sets are fewer decisions; for a front entry being matched to other trim, the Emtek selection is the reason to spend the time.

Plan on keying them separately. The Emtek 8071 Belmont is a keyed set that can be ordered keyed alike across a group or keyed to an existing code, which is how a run of Emtek openings gets consolidated onto one key. The Omnia D12036A and D12036AC are separate keyed products in single cylinder and double cylinder functions. For a property standardizing on one key across a fleet of doors, the practical path is to hold a single brand and function across those openings rather than mixing chassis and cylinder platforms.