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The DORMAKABA USA INC. RCI ARMB170 is a replacement armature bolt designed for use with electromagnetic door locking systems. Sized at 70 millimeters, this bolt interfaces between the magnet body and the armature plate to maintain proper alignment and holding force in mag lock installations. It is a single-unit replacement component sold individually and is handled primarily by licensed locksmiths, access control technicians, and security hardware installers working on commercial door hardware.
This armature bolt is specified for use with the RCI 8310 series electromagnetic lock. It is a common service and replacement part found in commercial access control applications including office buildings, data centers, and institutional facilities where electromagnetic locks secure single or double door openings. Installers source this bolt when the original hardware is damaged, stripped, or lost during maintenance.
Specified for use with the RCI 8310 series electromagnetic lock. Verify bolt thread pitch and armature plate clearance against the existing hardware before installation.
Installation should be performed by a qualified access control or security hardware technician. Before servicing the mag lock, de-energize the door controller and verify power is removed from the lock circuit. Use appropriate hand tools to avoid cross-threading or over-torquing the bolt into the armature plate. Installations in commercial buildings must comply with applicable local building, fire, and life safety codes governing egress hardware.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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