Adams Rite 1870HM Cylinder-Operated Flushbolt for Paired Hollow Metal Doors

Adams Rite 1870HM Cylinder-Operated Flushbolt for Paired Hollow Metal Doors

Professional Key-Controlled Security for Inactive Door Leaves

The Adams Rite 1870HM Cylinder-Operated Flushbolt provides building management with key control over the inactive leaf of paired hollow metal doors, preventing unauthorized casual locking. This professional-grade flushbolt features a hexagonal 3/8" bolt with 11/16" throw and accepts any standard 1" length mortise cylinder with MS cam. The unit measures 7/8" x 6" x 1-21/32" and may be installed to lock at threshold or header for maximum security flexibility.

Professional Features & Benefits

• Specifically engineered for narrow stile aluminum doors
• Hollow metal and wood door options available
• Accepts standard Adams Rite MS® cam mortise cylinders
• Multiple finish options: US3, US4, US10B, US32, US32D
• UL Listed models available
• Compatible with Adams Rite electric strikes for access control
• An ASSA ABLOY Group brand

Technical Specifications

• For complete technical specifications, contact Adams Rite at 1-800-626-7590 or visit adamsrite.com.

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Cylinder and Accessory Options

The 1870HM accepts standard 1" length mortise cylinders including the 4036 Mortise Cylinder and 4066 Thumbturn (sold separately). Additional accessories include the 4104 Mounting Bridge, 91-0965 Mounting Kit for radiused doors, 91-0966 Mounting Kit for beveled doors, 26-00090XX Tube Spacer, and MS4043 Cylinder Guard for enhanced security applications.

Why Choose Adams Rite Quality?

Adams Rite flushbolt products deliver professional-grade reliability with corrosion-resistant steel construction and stainless steel components engineered for demanding commercial applications. The 1870HM features the proven over-center action mechanism used in MS pivoted bolt deadlocks, ensuring dependable performance where security control is essential. Backed by a comprehensive 5-year warranty for added confidence in high-traffic commercial installations.