Combined with any lock manufacturer's 1-1/8" mortise cylinder lock, including Best, Corbin Russwin and Schlage, Karp's mortise preparation provides the highest level of security. It is ideally suited for asylums, detention centers or any environment where added durability and security is required.

This cylinder locking device provides keyed access from the outside of the door. The night latch also has a small thumb latch that allows the spring latch to remain in a retracted position, which allows access at any time.

The Spanner Head is an economical tamper-proof latching solution.

The Allen Head Security Latch is an economical, tamper-resistant latching mechanism that discourages theft, vandalism and unauthorized entry because it cannot be opened without an Allen wrench.

The Knob Turn Latch is finger operated, and is beneficial when tools are not available or desirable for opening and closing the access door.

This flush mounted, keyless Paddle Latch has a finger pull that facilitiates opening.

The T-Handle Latch with 90° turn is available with or without a keyed-alike cylinder lock.

Plexiglass vision panel provides durable, long-lasting and convenient viewing access to wall or ceiling contents.

Karp can integrate louvers into its door design to satisfy any architectural and ventilation requirements.