Adams Rite 1870HM-628 Cylinder-Operated Flush Bolt

Adams Rite 1870HM-628 Cylinder Operated Flush Bolt is expertly crafted for aluminum stile doors, offering a reliable solution for securing paired doors without the risk of accidental locking of the inactive leaf. This flush bolt features a 1-1/4" backset and is constructed from durable, corrosion-resistant steel, ensuring longevity and dependability in commercial settings. The 1870 model boasts a standard cylinder height of 12" with a ± 1-1/4" adjustment, accommodating various installation needs. The hexagonal stainless steel bolt provides a robust 11/16" throw, delivering a secure locking mechanism. Installation is straightforward, with a faceplate measuring 1" x 6-7/8" and a case size of 1" x 6" that adapts based on backset requirements. The flush bolt is operable by any standard mortise cylinder equipped with an MS® cam, which is readily available from multiple manufacturers. Each standard package includes the basic lock mechanism, actuator arm, rod/bolt assembly, stainless steel bolt guide, and all necessary mounting screws and installation instructions. Available in a sleek matte silver finish (628/US28), the Adams Rite 1870HM-628 is a reliable choice for professionals seeking quality and functionality in door hardware.

Cylinder OpeRated FlushBolt

Cylinder Operated Flush Bolt, Hollow Metal, 1-1/4" Backset, Aluminum

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