Adams Rite 4430-09-00-IB Flush Lockset, Radius Lock Face, 1" to 1-5/16" Stile Thickness, Individually Boxed, Black Satin

The Adams Rite 4430-09-00-IB is a flush lockset built specifically for sliding aluminum doors where a clean, flush installation and inside-only deadlock control are the priority. It combines the time-tested Adams Rite MS1847 deadlock mechanism with an ABS resin escutcheon in a black satin finish that suits modern storefront and commercial aluminum door profiles. The lockset fits stile thicknesses from 1" to 1-5/16" and ships with a radius-ended lock face that follows the curved profile of most narrow aluminum stiles. No cylinder is included or required for standard operation. Locking and unlocking happens entirely from inside through a vertical slide button set flush in a deeply recessed finger pull.

What makes the 4430 the right choice for sliding aluminum doors

Sliding door hardware presents a different set of requirements than swinging door hardware. There's no latch function to handle door pull, no room for a full cylindrical chassis, and the stile depth on aluminum sliding doors is typically narrow enough that a standard bored-hole deadbolt won't fit. The 4430 is purpose-built around those constraints. Its ABS resin escutcheon is molded to a profile that installs flush within the door face and fits the same cutout as the all-metal Adams Rite 4189 and 4190 flush locksets. That compatibility matters on replacement and retrofit projects where the door prep already exists. The black satin finish resists showing fingerprints and smudges in high-contact applications and pairs naturally with dark anodized aluminum frames common in commercial storefronts, office suites, and lobby entrances.

How the inside slide button and MS1847 deadlock work together

Operating the 4430 from inside is straightforward. A vertical slide button on the interior face projects or retracts the stainless steel deadlock bolt with a single upward or downward movement. The bolt itself is the self-protecting, adjustable Adams Rite MS1847 design, meaning it resists defeat attempts that target standard springbolts. The bolt reach is adjustable to accommodate door-to-frame gap variation on sliding doors, where tight tolerances aren't always guaranteed. The full Adams Rite MS1847 Series deadlock lineup provides context for how this mechanism performs across other applications. Because the 4430-09-00-IB ships without a cylinder, there's no exterior keying on this model. Occupants inside can lock and unlock freely; entry from outside requires a separate access method at the opening. Facilities that need exterior key access should look at the 4431 series, which adds a cylinder to the same platform.

Choosing the right stile thickness and lock face configuration

The -00 in the 4430-09-00-IB model number designates the stile thickness range: 1" to 1-5/16" (25.4mm to 33.3mm). Adams Rite offers the same lockset in additional thickness variants for wider stiles, including -05 for 1-3/8" to 1-5/8" doors and -08 for 1-3/4" to 2" doors. Ordering the wrong suffix means the escutcheon won't sit flush against the door face, so measure the door stile carefully before specifying. The -09 in the model number designates the radius lock face, which matches curved-corner aluminum stile cutouts. If your door has a square-corner prep, the -10 variant is the correct choice. Minimum clear depth required for installation is the backset dimension plus 9/16". The escutcheon and cylinder centerline sit between 5/8" and 1-9/32" from the face of the lock. All models ship individually boxed with mounting screws. For the full range of configurations in this product family, see the Adams Rite 4430/4431 Series. If you're specifying the keyed 4431 variant and need a compatible cylinder, the mortise cylinders section covers compatible options.

The 4430-09-00-IB is a direct-replacement and new-installation solution for sliding aluminum doors where clean aesthetics, reliable deadlock security, and inside-only control meet the spec.