Don-Jo MST-161 ASA Universal Strike Plate

The Don-Jo MST-161 ASA Universal Strike Plate is a problem-solving hardware essential designed for commercial door frames. This heavy-duty strike plate is specifically engineered to address one of the most common issues in facility maintenance: misalignment. When the centerline of the lock on the door and the centerline of the strike on the frame do not line up perfectly, the MST-161 provides a universal solution that ensures the latch engages securely every time.

Sized to fit a Standard ANSI 161 prep (4-7/8"), this plate is versatile enough for use with both cylindrical and mortise locksets. It is the go-to commercial strike plate for schools, hospitals, and office buildings where settling or improper installation has led to door closure issues.

Key Features & Performance

• Universal Misalignment Solution: Optimized for situations where lock and strike centerlines are different, allowing for a wider range of latch engagement without modifying the frame.
  
• Standard ANSI Dimensions: Features a 4-7/8" height, making it a direct replacement for standard ASA strikes in hollow metal or wood frames.
  
• Lockset Compatibility: Engineered to work seamlessly with both commercial cylindrical locks and heavy-duty mortise locks.
  
• Durable Construction: Built to withstand the high-frequency use typical of commercial entryways, ensuring long-term reliability and security.
• Complete Hardware Package: Comes supplied with two #12-24 x 1/2" Phillips head machine screws in a corrosion-resistant steel US2C finish for immediate installation.

Technical Details & Specifications

• Brand: Don-Jo
• Model Number: MST-161
• Height: 4-7/8" (Standard ANSI A115.2)
  
• Application: Fits standard "ASA" frame cutouts
• Fasteners: Includes 2 each 12-24 x 1/2" machine screws
• Fastener Finish: US2C (Zinc Plated Steel)
• Installation: Can be secured using standard frame mounting tabs or thru bolts if the frame prep is damaged.

Why Choose the Don-Jo MST-161?

The Don-Jo MST-161 is a critical "rescue" component for locksmiths and building engineers. Rather than performing costly frame welding or door rehanging, this ASA universal strike allows for a quick and professional fix to latching problems. Its industrial-grade build ensures it meets the rigorous demands of code-compliant facilities while providing the security and peace of mind necessary for high-traffic public spaces.

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