Adams Rite 4066-01-335 4066 Thumb Turn for MS Lock and 4900 Deadlatchs, Black Anodized

Optimize commercial door security and day-to-day access with the Adams Rite 4066 thumbturn cylinder from ASSA ABLOY. This thumbturn cylinder delivers reliable, keyless operation of deadlocks and deadlatches, reducing key management and speeding response for facilities, security, and maintenance teams. The black anodized finish provides durable corrosion resistance and an architectural look suited to high-traffic entrances. Built to interchange with standard 1-inch length, 1-5/32-inch diameter mortise cylinders, the 4066 is ideal for retrofit projects and access control integrations; cams are available to suit specific Adams Rite deadlock and deadlatch mechanisms. Furnished 1/4-inch thick for 1-3/4-inch doors, it installs quickly to minimize downtime and supports surveillance and monitoring workflows by enabling a dependable manual override where needed. Backed by a 5-year limited warranty, the Adams Rite 4066 thumbturn cylinder helps streamline security operations and maintain consistent cylinder performance in commercial, institutional, and retail environments. Specify the 4066 on your next access control or door hardware project—order now or contact us for cam selection and door-thickness options.

• Enable keyless operation of deadlocks and deadlatches to streamline access for maintenance and security teams
• Interchanges with standard 1" length, 1-5/32" diameter mortise cylinders for fast retrofit and reduced installation time
• Durable black anodized finish resists wear and corrosion for long-term performance in high-traffic doors
• Furnished 1/4" thick for standard 1-3/4" doors; cams available to match specific Adams Rite deadlock/deadlatch models
• Backed by a 5-year limited warranty for dependable, worry-free operation in commercial and institutional settings