RCI ARMB170 Armature Bolts, 2-3/4" (70mm) for Doors 2-1/4"-2-3/4" (57-70mm) Thick

Secure consistent magnetic contact and dependable performance for your access control and security installations with the RCI by dormakaba ARMB170 armature bolt. This armature bolt is engineered for electromagnetic lock systems and delivers the stable engagement installers rely on to prevent unauthorized entry and reduce nuisance alarms monitored by security and surveillance systems. Sized at 2.76" (70 mm) and designed for doors 2-1/4"–2-3/4" (57–70 mm) thick, the ARMB170 fits common commercial door profiles and is compatible with RCI models such as 8310, DE8310 and related series, enabling fast OEM replacements and retrofit upgrades. Built to endure continual use, its corrosion-resistant finish and precision fastener interface minimize wear and keep monitoring and access control hardware operating smoothly. Ideal for security integrators, facilities managers and AV/security contractors, the ARMB170 helps streamline installations and maintain reliable door locking performance. Order the RCI ARMB170 to ensure optimal magnetic lock contact and reduce service calls on your next access control, surveillance, or monitoring project.

• Ensures reliable magnetic contact to maximize holding force and reduce false releases in access control systems
• OEM-compatible design for quick replacement with RCI electromagnetic locks, minimizing downtime for security installations
• Sized for a precise fit in doors 2-1/4"–2-3/4" (57–70 mm) thick, simplifying field conversions and retrofit projects
• Durable construction and corrosion-resistant finish to withstand continuous operation in commercial security and surveillance environments
• Straightforward installation—2.76" (70 mm) length and standard fastener type to speed technician fit-up and inspection