Emtek 8226 Quincy Plate 3-3/8" CTC - Sideplate Lockset - Brass Thumbturn Privacy Non-Keyed Style

Yes. The Quincy 8226 uses one standard 2-1/8 inch cross bore, so it drops into a door already prepped for a standard tubular lockset. Backset is adjustable between 2-3/8 and 2-3/4 inches, and it covers doors 1-3/8 to 1-3/4 inches thick. What it does need beyond a plain knob prep is the sideplate cutout: the plate is a 3-3/8 inch center-to-center escutcheon, not a round rose, so the mounting screw holes land on that spacing.

The Quincy 8226 has no cylinder at all. For a keyed sideplate arrangement, Omnia's D12036A is a single cylinder deadbolt lever lockset in solid brass, and the D12036AC is the double cylinder version, keyed both sides. There is also a D12036PD double dummy on 5-1/2 inch centers for a non-latching door such as a closet or a false leaf on a pair. Note the Omnia plates are on different centers than the Quincy's 3-3/8 inch, so they are not a plate-for-plate swap on the same holes.

The Emtek 8226 Quincy sideplate lockset is a non-keyed privacy/bed/bath set with a brass thumbturn, so it is not built for an exterior opening. For a keyed sideplate set in solid brass, the Omnia D12036A is a single cylinder deadbolt lever lockset - it takes a key on the outside and leaves the inside operable by turn. Use the 8226 Quincy on bedroom and bathroom doors, and the D12036A where the door needs to be secured from outside.

No. The D12036PD is a double dummy set - trim only, with no latch and no locking mechanism - so it cannot secure a bathroom door. The Emtek 8226 Quincy is a privacy/bed/bath lockset with a brass thumbturn and a latch bored for a standard 2-1/8 inch cross bore. The two look alike on the door face because both use sideplates, but only the 8226 latches and locks. The D12036PD is also spaced at 5-1/2 inch center-to-center against the 8226 at 3-3/8 inch, so the plates do not cover the same holes.

It ships as a complete set: the sideplates, the knob or lever style you picked, the latch, and the strike plate. Nothing else is needed to hang it on a prepped door. The latch faceplate is available round corner or square corner, so it can be matched to the mortise already cut in the door edge rather than recutting it.

The Quincy plate takes any Emtek brass knob or lever style, and the trim list runs from crystal knobs (Bristol, Windsor, Georgetown) through classic levers (Milano, Turino, Coventry, Rope) to modern bar and knurled designs (T-Bar, R-Bar, L-Square, Conical). Eight finishes are offered: 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. That is how you keep bedroom and bath doors reading the same as the passage and keyed openings on the rest of the floor.

A sideplate set like the Quincy puts a long escutcheon plate along the stile instead of a small round rose. Two practical consequences: it covers more of the door face, which hides wear or an old plate footprint, and it needs stile width to sit flat, so it is not the pick for a narrow-stile door where a rose would fit. Function is identical underneath, a tubular privacy latch on a 2-1/8 inch bore.

Emtek lists the Quincy 8226 as residential. It suits single-family, condo, and multi-family interior bedroom and bath doors. For a commercial opening on a specified drawing, a residential privacy set is the wrong specification and you want a Grade 1 or Grade 2 bored lock instead.

The Omnia D12036PD is a solid brass dummy deadbolt lever lockset with plates on a 5-1/2 inch center-to-center spacing. A dummy set is surface-mounted trim with no latch and no locking action, so it suits a closet leaf, a French door inactive leaf, or a pull-only opening. The Emtek 8226 Quincy is a tubular privacy lockset with a latch, a strike plate, and a thumbturn, on 3-3/8 inch center-to-center.

All four are solid brass sideplate sets, so the material and the plate look carry through the house. The Emtek 8226 Quincy covers the bedroom and bathroom doors as a non-keyed privacy set with a brass thumbturn, and it is offered in finishes including Oil Rubbed Bronze (US10B), Satin Nickel (US15), Flat Black (US19), Polished Chrome (US26), and Unlacquered Brass (US3NL). The Omnia D12036A handles doors needing a key from outside as a single cylinder, the D12036AC where both sides must be keyed as a double cylinder, and the D12036PD is the dummy for closets and inactive leaves.

Brass throughout, both the material and the substrate, including the thumbturn. That matters for finish behavior: the Unlacquered Brass US3NL option is bare brass and will patina with handling, while Polished Brass Lifetime US3 holds its color. Pick deliberately if the doors need to look the same in five years.

It is an alternative latch that turns through a shorter arc than the standard one. Order it when the trim you have chosen only rotates a small amount, which is common with some lever and knob designs, so the latch retracts fully without over-travel. If you are on standard trim, leave it on the standard latch.

No. It is a fully mechanical thumbturn privacy lock, nothing electronic, no batteries, no wiring, no access control integration. Trim it, latch it, done.