Arrow BM-385A Lever Spindle for BM Series Mortise Lock — H Escutcheon & Rose Trim

The Arrow BM-385A is a genuine replacement lever spindle engineered specifically for Arrow BM Series mortise locks fitted with a flat (“H”) escutcheon or rose trim. When lever handles lose engagement with the mortise lock case due to a worn or broken spindle, the BM-385A restores proper function quickly — eliminating the need for a full lock replacement and keeping the door operational with minimal downtime.

This spindle is a direct, part-level service component — an exact-fit replacement that maintains the original mechanical performance of the BM Series mortise lock assembly.

Key Benefits

• Direct replacement fit — designed for Arrow BM Series lever mortise locks; no modification required
• Compatible trim types — fits doors with flat (“H”) escutcheon or rose trim configurations
• Correct door thickness — sized for standard 1-3/4" thick commercial doors
• Part-level repair — restore lever function without replacing the entire mortise lock body or trim set
• Reduces service cost — a targeted spindle replacement is significantly more economical than a full lock changeout

Applications

• Facility maintenance and replacement on commercial doors equipped with Arrow BM Series mortise locks
• Institutional, office, and light commercial openings where BM Series hardware is installed
• Retrofit and repair projects where the lock body is serviceable but the spindle is worn, sheared, or damaged
• Restoring lever operability on doors with H escutcheon or rose trim after hardware failure

Compatibility Note

The BM-385A spindle is specific to the Arrow BM Series mortise lock line and is not a universal spindle. Verify your existing lock body is an Arrow BM Series mortise lock and that the trim is an H (flat) escutcheon or rose configuration before ordering. Door thickness must be 1-3/4". If you are evaluating a full hardware replacement rather than a part-level repair, comparable mortise lock solutions are available from preferred commercial lines such as Sargent and Corbin Russwin — contact DoorwaysPlus for a quotation.

Technical Details