Schlage Electronics 14-051 AD/CO Series Deadlatch 2-3/8" Backset, Cylindrical, Square Corner 1-1/8" X 2-1/4"

It is a fixed 2-3/8 inch cylindrical backset, with no adjustment. 2-3/8 inch is the common backset on residential and light office doors, so if your door is prepped at 2-3/4 inches you need a different latch. Within Schlage, the 16-228 and the 16-480 are adjustable 2-3/8 or 2-3/4 inch deadlatches, though those serve the S200 and CS210 series rather than the KC5100-2 or MPC.

The 14-051 is tied to Schlage AD and CO Series electronic locks and works with KC5100-2 and MPC locks only, so it is not a general purpose latch. For a conventional keyed entry lockset at the same 2-3/8 inch backset, the Deltana G1RLE238 is a Grade 1 regular latch with an entry function. If the opening is a bathroom or a hall door instead, the Deltana G1RLP238 is the Grade 1 passage and privacy version at the same backset. Both are offered in 2-3/4 inch backset as the G1RLE275 and G1RLP275.

The 14-051 AD/CO Series deadlatch is a fixed 2-3/8 inch cylindrical backset, so it will not reach a 2-3/4 inch bore. The Schlage 16-228 for S200 and CS210 Series is adjustable to either 2-3/8 or 2-3/4 inch backset and carries the same 1-1/8 inch by 2-1/4 inch square corner face, so the door and frame prep matches. The Schlage 16-480 for the S200 Series is also adjustable between the two backsets but uses a 1 inch by 2-1/4 inch face, which means a narrower edge mortise.

No. The 14-051 is a cylindrical deadlatch for AD and CO Series electronic locks, and it is compatible with Schlage KC5100-2 and MPC locks only. The Schlage 12-630 is a deadbolt for the B600, B700 and B800 Series, which is a separate bolt mechanism driven by a deadbolt cylinder or turn rather than a retracting latch driven by a lever. They share the 2-3/8 inch backset and a 1-1/8 inch by 2-1/4 inch square corner face, so the edge prep looks alike, but the two are not functional replacements for each other.

A deadlatch has an auxiliary deadlocking plunger riding alongside the main latchbolt. When the door closes and the plunger hits the strike, it blocks the latchbolt from being pushed back, so the latch cannot be loided with a card or shim. A plain spring latch has no plunger and can be slipped. The 14-051 is the deadlatch version and belongs on any opening with exterior or corridor exposure.

No handing to specify. It is a cylindrical deadlatch, and cylindrical latches are non-handed, so the same part serves a left or right hand door. Just confirm the latchbolt bevel faces the stop when you install it.

Yes, P510142 is the legacy part number for the 14-051 deadlatch. If an old service order or parts list calls out P510142, the 14-051 is the current designation for it.

No. The Dexter Grade 1 Deadlatch is built for the Dexter C1000 Series, while the Schlage 14-051 serves AD and CO Series electronic locks and is compatible with Schlage KC5100-2 and MPC locks only. Latch tailpiece and hub engagement differ between manufacturers' cylindrical chassis, so match the latch to the lock body brand and series rather than to the backset alone.

The 14-051 is a stainless steel cylindrical deadlatch for AD and CO Series locks, fixed at 2-3/8 inch backset with a square corner 1-1/8 inch by 2-1/4 inch face. The Schlage 12-289 is a deadbolt for the B500 Series, adjustable to 2-3/8 or 2-3/4 inch backset, with a 1 inch by 2-1/4 inch face and a 1/4 inch round corner. If the existing door prep has radiused corners on the edge mortise, the square corner face of the 14-051 will not drop in without rework.

The 14-051 is a cylindrical deadlatch sized for a standard bored door at 2-3/8 inch backset, which the description notes is a common backset for residential and light office doors. For a sidelite, the Accentra YSSL10 Security SideLite Auxiliary Latch is purpose built for that application, includes an ADA compliant thumbturn, is fire rated, and is specified for 1-3/4 inch thick doors.

They solve the problem differently. The 14-051 is a replacement deadlatch that serves an existing Schlage AD or CO Series lock and only fits KC5100-2 and MPC locks. The Lockey M230 is a complete mechanical keyless digital combination lock with a deadlocking spring latch and an adjustable backset, rated for doors 1-1/8 to 2 inches thick, so it replaces the whole lockset rather than a component of one. Choose the M230 when you are changing out the entire opening hardware, and the 14-051 when the Schlage chassis stays.

The 14-051 uses a square corner face measuring 1-1/8 inch by 2-1/4 inch. Among Schlage latches and bolts, the 16-228 for S200 and CS210 Series and the 12-630 for B600, B700 and B800 Series both use the same 1-1/8 inch by 2-1/4 inch square corner face. The 16-480 and the 12-289 use a narrower 1 inch by 2-1/4 inch face, and the 12-289 has 1/4 inch round corners, so neither fills a square 1-1/8 inch mortise.

Two: 605 bright brass and 626 satin chrome. Since only the faceplate shows on the door edge, pick the one matching the lock trim already on the opening. 626 satin chrome is the usual match for commercial satin chrome or brushed nickel lever trim.

Stainless steel construction, and it is catalogued for commercial use rather than residential-only duty. For a property manager standardizing on Schlage KC5100-2 or MPC openings, it is the factory replacement latch for that chassis.

It depends on what is on the doors. The 14-051 is a commercial stainless steel deadlatch that only serves Schlage AD and CO Series electronic locks with KC5100-2 and MPC compatibility, so it standardizes a building already running that electronic platform. If the doors carry conventional mechanical locksets, the Deltana Grade 1 regular latch line covers both common backsets and both common functions with the G1RLE238 and G1RLE275 for entry and the G1RLP238 and G1RLP275 for passage and privacy, which lets one latch family cover unit doors and interior doors.