Emtek 8143 STRETTO Narrow Trim Lockset, 1-1/2" x 11" Modern Rectangular Non-Keyed, Brass Tubular, Passage

That is exactly what the 8143 is built for. It uses narrow 1-1/4 inch door preps with 3-3/8 inch center-to-center hole spacing, so it works on doors too narrow for a standard rosette set. The trim plate itself measures 1-1/2 x 11 inches. If your door is already bored with the standard 2-1/8 inch cross bore, that matches too, since the 8143 uses a 2-1/8 inch cross bore.

No. It is a passage function, non-keyed set, so both knobs or levers always turn and the latch never locks. Use it on hallways, closets, and pantries. For a bedroom or bathroom you want a privacy set with a push-button or turn, and for an exterior or lockable door you want a keyed entry set.

Handing is required, right hand or left hand, and it matters for levers in particular so the lever throws down toward the correct side. Stand outside the door: if the hinges are on your right it is right hand, hinges on the left is left hand.

Yes, but you have to say so. The latch is adjustable for 2-3/8 or 2-3/4 inch backset, and 2-3/8 is what ships if you do not specify. Measure from the door edge to the center of the existing 2-1/8 inch cross bore and call out 2-3/4 inch if that is what you have.

The 8143 ships as a complete set with the latch and strike plate included. The knob or lever is not a separate purchase but it is a required selection: you choose the inside trim style when you order, from Emtek's brass knob and lever range including the Stuttgart and Helios levers, the Ace and Ace Knurled knobs, the Spoke knob, and the L-Square, T-Bar, R-Bar and Conical families in faceted, hammered, knurled, Tribeca, straight knurled and white marble. The latch faceplate comes round corner or square corner to suit the mortise already cut in your door edge.

It is a residential product, a brass tubular lockset. For apartment interiors, model units, and high-end residential it is on point. For a commercial corridor, school, or anywhere on a durability spec, you want a commercial cylindrical or mortise lock instead.

Seven: Oil Rubbed Bronze (US10B), Polished Nickel (US14), Satin Nickel (US15), Flat Black (US19), Polished Chrome (US26), Unlacquered Brass (US3NL), and Satin Brass (US4). Unlacquered brass is the one that will patina over time rather than staying uniform, which matters if you are trying to match existing hardware across a building.

Yes, on appearance. The 8143 is the passage version of the STRETTO Modern Rectangular narrow trim plate, 1-1/2 x 11 inches in a contemporary rectangular profile, and it takes the same brass knob and lever styles as the rest of the range. Specify the same finish across the openings and the passage doors will read identically to the privacy and keyed doors, with the difference only in function.

The 28 degree latch is what lets a passage set operate without binding on a narrow trim plate. It works with the strike plate included in the set, so plan on installing that strike rather than reusing an old one, since the existing strike lip and depth may not suit.