Adams Rite 1871-20-628 Cylinder-Operated Flush Bolt

Adams Rite 1871-20-628 Cylinder Operated Flush Bolt offers a reliable solution for securing aluminum stile doors. Designed specifically to prevent the accidental locking of the inactive leaf of paired doors, this flush bolt enhances both security and convenience in commercial settings. The model features a radius face and is available with a backset of either 31/32" or 1-1/8", ensuring compatibility with various door configurations. Measuring 1" x 6" with a depth that varies by backset, the sturdy steel case is finished with corrosion-resistant plating, promising durability. The hexagonal stainless steel bolt boasts a 3/8" flat-to-flat design and a robust 11/16" throw, providing a secure locking mechanism. Suitable for both metal and wood thresholds, it requires a 1/2" diameter hole for installation, with an optional 4005 strike available for wood applications. This model can be operated using any standard mortise cylinder equipped with an MS® cam, making it versatile and easy to integrate. Each unit is packaged with all necessary components, including a stainless steel bolt guide and installation instructions, ensuring a straightforward setup. Experience peace of mind with the Adams Rite 1871-20-628, a trusted choice for commercial door hardware.

Cylinder OpeRated Flush Bolt

Cylinder Operated Flush Bolt, Radius Face, 1-1/8" Backset, Aluminum Finish

The 1870 Cylinder-Operated Flushbolt is designed for aluminum stile doors.

Prevents accidental locking of the inactive leaf of paired doors.

• Cylinder Backset: 31/32” or 1-1/8” only
• Cylinder Height: Standard length (cylinder center to retracted bolt tip) is 12” with ± 1-1/4” adjustment. Other lengths available by special order.
• Case: Measures 1” x 6” x depth.  Depth varies by backset (see table on catalog page). Steel with corrosion-resistant plating.
• Bolt: Hexagonal 3/8” flat to flat, with 11/16” throw. Made of stainless steel.
• Strike: 1/2” diameter hole in metal threshold or header is suitable. For wood thresholds, 4005 strike is available separately.
• Faceplate: Measures 1" x 6-7/8".
• Cylinder Cam: Operable by any standard mortise cylinder with MS® cam, dimensioned as shown. Cylinders with MS® cams can be readily obtained from most cylinder manufacturers. See CYLINDERS for cylinder make, thumbturn and trim ring information.
• Standard Package: Basic lock mechanism boxed with actuator arm attached, rod/bolt assembly unattached. Stainless steel bolt guide, mounting screws, and installation instructions included. Cylinders available separately. Shipping weight: 1-1/4 lbs.

Resources

• 1870 Cylinder-Operated Flushbolt Installation Instructions
• 1870HM Series Cylinder Operated Flushbolt Installation Instructions
• 1877 Cylinder-Operated Flushbolt for Wood Doors Installation Instructions
• B1921, B1923 Full Surface Reinvorcing Pivot Hinges Installation Instructions
• Flushbolts and Pivots Cut Sheet
• MS1880, MS1881 Two-Point Flushbolt Installation Instructions