Accentra D151 Blank Plate x Cylinder Deadbolt, 2 3/8" Backset

The Accentra D151 is a blank plate x cylinder deadbolt with a 2-3/8-inch backset, carrying ANSI function number E0101. The exterior face has a blank plate with no keyway or cylinder. The interior face has a key cylinder that operates the deadbolt bolt. This reverses the typical deadbolt configuration: interior entry requires a key, while the exterior has no operating mechanism. It installs on doors prepared to ANSI/BHMA A156.115 specifications using a standard bored-hole installation on square or beveled doors, opening in or out. Non-handed and field reversible. Door thickness 1-3/8 to 1-3/4 inches. SKU: D151.

What blank plate x cylinder means and why this deadbolt configuration is specified

A blank plate x cylinder deadbolt has a key cylinder on the interior face and a blank plate on the exterior. Operating the deadbolt bolt from inside the space requires a key. The exterior face has no cylinder and no thumbturn, so the bolt cannot be thrown from outside by any means. This is not a standard entry door configuration. It applies to specific applications where interior key control is the requirement and the exterior door face is either inaccessible, unoccupied, or controlled by a separate system that handles exterior access entirely.

Common applications include mechanical room doors, utility access points, server rooms, and interior secure areas where the door is opened from outside by a keyed cylindrical or mortise lockset on the primary latch, and the deadbolt adds a secondary bolt that only authorized personnel inside the space can engage or release with a separate key. The blank exterior plate also appears on stairwell and corridor doors in institutional buildings where the stairwell side is the "interior" face and the occupied corridor side is the "exterior" face. For the blank plate x thumbturn version in the same 2-3/8-inch backset, the Accentra D141 blank plate x thumbturn deadbolt is the correct specification when thumbturn interior operation is preferred over key-only interior operation.

What ANSI function E0101 specifies for the D151 deadbolt

ANSI function number E0101 is the standardized designation for a blank exterior plate x interior key cylinder deadbolt under the ANSI/BHMA A156 series standards. This function number identifies the exact operational behavior on hardware schedules and specification documents. When a door schedule lists E0101, the D151 is the Accentra product that satisfies that function at the 2-3/8-inch backset. The interior cylinder on the D151 can be keyed to match a building master key system, allowing access control managers to include the deadbolt in the overall key hierarchy for the facility.

For key cylinders, IC cores, and key blanks compatible with the Accentra cylinder in the D151, the cylinders, cores, and keys section covers the available options. For the full range of Accentra D-series deadbolt configurations including cylinder x thumbturn versions, the Accentra D112 cylinder x thumbturn deadbolt is also stocked.

Backset, door thickness, and installation requirements for the D151

The D151 uses a 2-3/8-inch backset, the shorter of the two standard deadbolt backset dimensions. This backset applies to narrow-stile doors, aluminum frame door preps, and any installation where the 2-3/4-inch backset dimension is not compatible with the existing or planned door boring. Confirm the backset dimension by measuring from the door edge to the center of the existing bore hole before ordering.

The D151 installs on doors from 1-3/8 inches to 1-3/4 inches thick and is non-handed and field reversible, so the same unit covers both left-hand and right-hand swing and inswing or outswing door configurations without modification. For the complete range of auxiliary deadbolts across all configurations, the auxiliary deadbolts section covers the available options. For all cylindrical deadbolt configurations across brands, browse the cylindrical deadbolts catalog.

Confirm the backset dimension matches the door prep before ordering. Multiple finishes are available. The D151 is non-handed and field reversible.