Adams Rite 1870-20-313 Cylinder-Operated Flush Bolt

Adams Rite 1870-20-313 Cylinder Operated Flush Bolt offers an effective solution for securing aluminum stile doors with confidence. Featuring a sleek flat face design and a durable dark bronze anodized aluminum finish, this flush bolt not only enhances security but also complements modern architectural aesthetics. Designed to prevent the accidental locking of the inactive leaf in paired doors, the 1870 model is equipped with a cylinder backset option of 31/32" or 1-1/8". The standard cylinder height measures 12" with a ±1-1/4" adjustment, ensuring versatility to fit various door configurations. Built from steel with corrosion-resistant plating, the case measures 1" x 6", while the robust hexagonal stainless steel bolt boasts a 3/8" flat to flat measurement and a substantial 11/16" throw. Installation is straightforward, with the standard package including the basic lock mechanism, actuator arm, stainless steel bolt guide, and necessary mounting screws. The faceplate dimensions of 1" x 6-7/8" and compatibility with standard mortise cylinders equipped with MS® cams enhance usability and convenience. Ideal for commercial applications, the Adams Rite 1870-20-313 Cylinder Operated Flush Bolt is a reliable choice for enhancing door security and functionality.

Cylinder OpeRated Flush Bolt

Cylinder Operated Flush Bolt, Flat Face, 31/32" Backset, Dark Bronze Anodized Aluminum Finish

Cylinder Operated Flush Bolt, Flat Face, 31/32" Backset, Dark Bronze

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