Schlage Commercial 12-291 - B500 Series Deadbolt Adjustable 2-3/8" or 2-3/4" Backset, 1-1/8" x 2-1/4" Face

One part covers both. The 12-291 bolt is adjustable for a 2-3/8 or 2-3/4 inch backset, so you set it at the door instead of ordering by backset. Those are the two backsets almost every bored door is prepped to, so measure from the door edge to the center of the cross bore, confirm which one you have, and set the bolt to match before you install it.

The 12-291 is a Schlage service part for the B500 Series deadbolts and the S200 Series. If a deadbolt from either of those families is binding or worn and the cylinder and trim are still good, this is the bolt assembly you order rather than replacing the whole lock.

The face measures 1-1/8 x 2-1/4 inches. If the bolt coming out carries the same face, it goes back into the existing pocket in the door edge with no chisel work. Any other face size means the mortise has to be re-cut or the plate shimmed, so pull the old bolt and measure the plate before ordering.

Match it. Schlage parts in this line are finish specific, and the faceplate is visible on the door edge whenever the door is open. Finishes run 605 bright brass, 609 antique brass, 613 oil rubbed bronze, 619 satin nickel and 626 satin chrome. Read the finish number stamped on your existing Schlage trim and order the bolt to it.

Two different parts, one per bore. For the deadbolt bore, the Schlage 12-291 is the bolt assembly for S200 and B500 series deadbolts and adjusts to either a 2-3/8 or 2-3/4 inch backset, so it covers the bore either way. For the lockset bore below it, that depends on how the door has to work: the Deltana G1RLE238 and G1RLE275 are Grade 1 regular latches in an entry function at 2-3/8 and 2-3/4 inch backsets, and the G1RLP238 and G1RLP275 are the passage/privacy versions at the same two backsets. Measure the lockset backset from the door edge to the center of the bore before picking between the 238 and 275 parts, since the Deltana latches are backset specific.

Backset is not a variable you have to carry. Because the 12-291 adjusts between 2-3/8 and 2-3/4 inches, a single part number services both preps across the property. The bolt is stainless steel and specified for commercial rather than residential duty, which is what you want in an opening that gets rekeyed and re-tenanted repeatedly. The one thing you do have to split your stock by is finish.

Two different routes. The 12-291 keeps the existing Schlage B500 deadbolt and its cylinder in service and swaps only the bolt, so the keying stays as it is. If you want the keys off that opening entirely, the Lockey M230 is a mechanical keyless combination lock with a deadlocking spring latch and an adjustable backset, and it fits doors 1-1/8 to 2 inches thick.

Usually not. The narrowest setting on the 12-291 bolt is a 2-3/8 inch backset, and a sidelite stile is generally too narrow to take a bored deadbolt prep at that backset without running the bore into the glass. For a sidelite, the Accentra YSSL10 is a purpose-built auxiliary sidelite latch with an ADA compliant thumbturn, fire rated, for 1-3/4 inch thickness.

The Schlage 12-291 adjusts to either a 2-3/8 inch or a 2-3/4 inch backset in the same part, with a 1-1/8 by 2-1/4 inch face, so one part number ships for either bore. Not every brand handles it that way. Deltana splits the two backsets into separate part numbers: the G1RLE238 Grade 1 regular latch entry is built for a 2-3/8 inch backset and the G1RLE275 for a 2-3/4 inch backset, and the passage/privacy versions follow the same split as the G1RLP238 and G1RLP275. With those, the backset has to be confirmed before the order goes out. One difference to hold onto: the Deltana parts are regular latches driven by knob or lever trim, while the 12-291 is the bolt assembly for S200 and B500 series deadbolts.

No. Replacement latches are built to the lock series they came out of, and the two do not cross. The Dexter deadlatch for the C1000 series is the part matched to those locks. The Schlage 12-291 is a certified Schlage part for the S200 and B500 series, in stainless steel, adjustable to a 2-3/8 or 2-3/4 inch backset with a 1-1/8 by 2-1/4 inch face. If the building runs both brands, keep the two part numbers separate on the truck stock list and pull by lock series rather than by bore size, because a matching backset does not make the parts interchangeable.

There are two directions here. Staying with the existing deadbolt, the Schlage 12-291 replaces the bolt assembly on S200 and B500 series deadbolts, adjusts to a 2-3/8 or 2-3/4 inch backset, and keeps the existing trim and keyway on the door. Going keyless instead, the Lockey M230 is a mechanical keyless digital combination deadlocking spring latch lock with an adjustable backset, fitting doors 1-1/8 to 2 inch thick, and it replaces the lock as a unit rather than a part inside it. The M230 changes who can open the door by combination rather than by key; the 12-291 keeps the current key system and cylinder in place. Check the door thickness against the 1-1/8 to 2 inch range before committing to the M230 route.

The sidelite takes a part built for that opening. The Accentra YSSL10 is a security sidelite auxiliary latch that ships with an ADA compliant thumbturn, is fire rated, and is specified for 1-3/4 inch doors. It is a self-contained auxiliary latch for the narrow panel rather than a bolt that drops into a standard deadbolt bore. The Schlage 12-291 covers the deadbolt on the main leaf, adjusting to a 2-3/8 or 2-3/4 inch backset with a 1-1/8 by 2-1/4 inch face, for S200 and B500 series deadbolts. On a two-part entrance those are complementary orders, not alternatives to each other, so confirm the sidelite panel thickness against the YSSL10 1-3/4 inch figure while measuring the main door bore.

They standardize on different axes, so plan the stock list in two groups. On the deadbolt side, the Schlage 12-291 is a certified Schlage part in stainless steel that covers both the 2-3/8 and 2-3/4 inch backsets in one adjustable part for S200 and B500 series deadbolts, with a 1-1/8 by 2-1/4 inch face, and it is offered in 605 bright brass, 609 antique brass, 613 oil rubbed bronze, 619 satin nickel and 626 satin chrome, so the SKU count is driven by finish rather than by backset. On the lockset side, the Deltana regular latches are Grade 1 and break out four ways across function and backset: G1RLE238 and G1RLE275 in entry, G1RLP238 and G1RLP275 in passage/privacy. Note that many Schlage parts are finish specific, so match the finish to the existing trim when setting the stocking levels.