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Deadlocks
Adams Rite deadlocks have long been considered the industry standard and remain the dominant locking solution for narrow stile aluminum and glass doors. We offer a variety of shapes, features, and sizes to provide maximum security for sliding and swinging doors applications.
Frequently Asked Questions
What is a deadlock?
A deadlock is a mechanical lock that uses a solid bolt operated only by key, without a spring latch. At National Lock Supply, we provide deadlocks for high-security applications where key-only operation is required.
How does a deadlock differ from a deadbolt?
Deadbolts can have a thumbturn inside, but a deadlock is usually keyed on both sides or lacks a latch altogether. This makes it more secure but less convenient.
What door prep is required?
Most deadlocks install into a 2-1/8″ bore and 1″ latch bore, with backsets of 2-3/8″ or 2-3/4″, similar to deadbolts.
What ANSI functions exist for deadlocks?
Single-cylinder, double-cylinder, and institutional functions exist, all following ANSI/BHMA standards.
What grades are offered?
Deadlocks are usually Grade 1 for maximum durability and strength, but lighter Grade 2 and 3 models exist for residential use.
Where are deadlocks commonly used?
In storage rooms, service doors, and restricted access areas where exit without a key is not desired.
Are deadlocks ADA compliant?
Generally no, since they require a key for both entry and exit. ADA compliance usually requires lever-operated locks.
What finishes are available?
Satin Chrome, Oil-Rubbed Bronze, Bright Brass, and Matte Black are standard.
Can deadlocks be keyed alike with other locks?
Yes. Deadlocks accept SC1, KW1, or interchangeable cores, making them easy to integrate into master key systems.
Why buy deadlocks from National Lock Supply?
We supply Grade 1 deadlocks in multiple cylinder types and finishes, with expert support to ensure the right fit for your security requirements.