Emtek 8991 Colonial 5-1/2" Center-to-Center Keyed Sideplate Lockset, Passage/Double Keyed - Brass Tubular

Yes. The 8991 Colonial keyed sideplate uses one standard 2-1/8 inch cross bore, so it drops onto a door already prepped for a standard bored lockset. Door thickness range is 1-3/8 to 1-3/4 inches, which covers both a standard commercial 1-3/4 inch door and the thinner 1-3/8 inch interior doors common in older homes. The backset is adjustable, 2-3/8 or 2-3/4 inches, and you pick which one you want when ordering. The sideplate itself is 5-1/2 inches center to center, so the plate needs that much clear stile above and below the bore.

Double cylinder. The 8991 is an entry function sideplate lock that takes a key on both the outside and the inside, with no interior thumbturn. That is what you want on a door with glass beside it or in it, since nobody can break the lite and reach the turn. It also means anyone inside needs a key to get out, so check the egress rules for your building type before you specify it. If you want key outside and turn inside, order the single cylinder version instead.

It is a complete set. Knob or lever, latch, and strike plate all ship with the 8991. The standard latch is built for a 2-3/8 inch backset, so if your door is bored at 2-3/4 inches you have to say so on the order and the correct latch comes instead. Latch faceplate is available round corner or square corner to match what is already routed into your door edge.

Residential. The 8991 Colonial is a residential-duty tubular sideplate lock, so it is right for a house, a condo unit, or an apartment entry door, not for a high-traffic commercial opening or a fire-rated door assembly. For a leasing office, a lobby, or anything on a rated door, spec a Grade 1 or Grade 2 commercial cylindrical or mortise lock instead.

The Omnia D12036AC is a double cylinder deadbolt lever lockset in solid brass with a sideplate design, which matches the Emtek 8991 Colonial on the point that decides most of these openings: it is keyed from both sides rather than keyed outside and thumbturn inside. The Emtek 8991 is a double cylinder entry function in brass with a 5-1/2 inch center-to-center sideplate. Both are keyed on both faces, so an exit that requires a key in hand from the inside is served either way. Confirm your keying instructions carry over to whichever you order.

Order the Omnia D12036A, a single cylinder deadbolt lever lockset in solid brass. Single cylinder means the key operates from one side only, where the Emtek 8991 Colonial is a double cylinder entry lockset requiring a key from both faces. Many residential egress situations and some local codes push toward the single cylinder arrangement on a primary entry door, so this is the version to specify when a key should not be needed to get out.

Stand on the outside of the door, the side you key from. If the hinges are on your right, it is right hand; hinges on the left, it is left hand. Handing is a required selection on the 8991 and it matters for both the sideplate orientation and the lever, since a lever has to curve back toward the door. Get it wrong and the lever points the wrong way. On a knob it still matters because the plate is handed.

Yes. Keyed alike is a selection on the 8991 at no extra charge, so a front, back, and side door can all run one key. Keyed different is the other option if each opening needs its own. There is also a keying to code field if you are matching an existing key system and have the code in hand, which is how you add a door to a house or building that is already keyed rather than rekeying everything.

Yes, and that is the point of the Colonial sideplate. The 8991 can be ordered with any Emtek brass knob or lever style, so you can run a Cortina or Milano lever on some doors and an Egg or Providence knob on others while every sideplate matches. Crystal knobs like Bristol, Windsor, and Georgetown are on the same list. That is how you get one consistent plate across a house with different trim in different rooms.

Solid brass throughout, both the substrate and the trim. Eight finishes: Oil Rubbed Bronze (US10B), Satin Nickel (US15), Pewter (US15A), Flat Black (US19), Polished Chrome (US26), Polished Brass Lifetime (US3), Unlacquered Brass (US3NL), and French Antique (US7). Two of those change over time by design. Unlacquered brass has no clear coat and will patina to a darker tone with handling and weather. Oil Rubbed Bronze is a living finish that wears through at the grip points. Polished Brass Lifetime is the one that stays as it arrives.

Both are solid brass double cylinder sideplate locksets, so both take a key inside and out. The Emtek 8991 is a tubular entry lock on one standard 2-1/8 inch bore, with 2-3/8 or 2-3/4 inch backset and a 5-1/2 inch center-to-center plate. The Omnia D12036AC is a deadbolt lever lockset, meaning the security comes from a deadbolt rather than a keyed latch. If you want key-outside, turn-inside instead, the Omnia D12036A is the single cylinder version. For an inactive leaf or a closet that only needs the look, the Omnia D12036PD is a double dummy at the same 5-1/2 inch center to center, and it has no working latch at all.

Yes, with the Emtek 443 interconnect device, which is an option on the 8991 order. An interconnect ties the lock and a deadbolt so one motion retracts both, which is what you want on an apartment or rental entry where a tenant should not be able to leave the deadbolt thrown by accident. Without it the 8991 is a standalone bored lock and any deadbolt above it works independently.

The 8991 is built for 1-3/8 to 1-3/4 inch doors as standard. There is a door thickness field on the order, so state your actual thickness there rather than assuming the standard set will reach. On a door outside the standard range the spindle and screws are the limiting parts, not the plate.

The Omnia D12036PD is a solid brass dummy deadbolt lever lockset with plates on 5-1/2 inch center to center, a double dummy function - the levers are fixed decoration with no latch and no cylinder. It carries the same 5-1/2 inch center-to-center plate spacing as the Emtek 8991 Colonial, so a pair of closet or false doors alongside a keyed opening keeps a consistent plate layout. Choose it only where nothing needs to latch, since a dummy does not secure the door.