ABH 4423 Surface Mounted Overhead Door Stop | US32D Satin Stainless Steel

The ABH 4423 is a high-performance, medium-duty surface mounted overhead door stop designed specifically for standard 3-foot commercial openings. Engineered to protect the structural integrity of doors, frames, and adjacent walls, this hardware is a premier solution for commercial door security and long-term facility maintenance. Finished in architectural US32D Satin Stainless Steel, the 4423 model is the definitive solution for door restoration in high-traffic schools, offices, and healthcare environments.

Adaptive Performance for Standard Commercial Openings

The ABH 4423 provides maximum field flexibility, allowing maintenance teams to customize door behavior based on specific room traffic. It serves as a proactive solution for door surface repair by absorbing the shock of over-extension:

• Automatic Hold-Open & Release: The precision internal sliding block allows the door to engage or release the hold-open position with a simple push or pull. This hands-free operation supports ADA requirements and streamlines traffic flow in busy corridors.
  
• Field Adaptable Functions: This multi-functional unit is designed for versatility. The hold-open feature can be easily disengaged in the field to act as a Stop Only function, providing a flexible solution for door restoration if room usage or fire safety requirements change.
  
• Customizable Stop Points: The single-point stop/hold-open can be adjusted in 5-degree increments from 85° to 110°, allowing you to protect wall-mounted monitors, equipment, or furniture by stopping the door at a precise angle.
  
• Non-Handed & Reversible: The 4423 is completely non-handed, making it a reliable stock item for facility managers because it installs seamlessly on both left and right-hand doors without modification.
  

Industrial-Grade Stability with Thru-Bolt Engineering

Overhead hardware is subject to significant leverage and stress. The ABH 4423 is built to remain secure and stable for the life of the opening:

• High-Strength Thru-Bolt Mounting: To ensure the hardware never pulls loose or sags, this unit is installed using thru bolts (included). This "clamping" method provides superior stability compared to standard surface screws, acting as a permanent solution for door edge reinforcement.
• Architectural Grade Materials: Featuring a 3/4” wide stainless steel channel and a solid 3/16” thick arm, the 4423 is built to endure the rigors of institutional use without mechanical fatigue.
• Warnock Hersey Listed: In the "Stop Only" configuration, this hardware is Warnock Hersey listed, ensuring it meets the stringent fire and life safety standards required for modern commercial buildings.
• Satin Stainless Steel (US32D): The finish is not only aesthetically pleasing for modern interiors but also provides a durable, corrosion-resistant layer that withstands harsh cleaning agents used in medical and educational facilities.
  

Technical Details & Specifications

• Brand: ABH Manufacturing
  
• Model: 4423 (Medium Duty)
  
• Finish: US32D (630 Satin Stainless Steel)
  
• Door Frame Opening (Hinges): 30" - 35-15/16" Wide
  
• Door Frame Opening (Center Hung Pivots): 33-1/2" - 38-15/16" Wide
  
• Minimum Door Thickness: 1-3/8"
  
• Maximum Opening: 110 Degrees
• Fasteners: Wood screws, machine screws, and thru bolts included

Why Choose the ABH 4423?

For standard-width commercial doors that require a reliable limit, the ABH 4423 is the highest-performing solution for commercial door security. Its combination of thru-bolt stability and adaptable functionality makes it a long-term solution for door restoration. By effectively controlling the door's range of motion, the 4423 prevents expensive frame fatigue and wall damage, ensuring your facility remains safe and professional.