ABH 4433 Surface Mounted Friction Hold-Open Overhead Door Stop | US32D Satin Stainless Steel

The ABH 4433 is a professional-grade, medium-duty surface mounted overhead door stop featuring a specialized friction hold-open mechanism. Sized perfectly for standard 3-foot commercial openings, this hardware is a premier solution for door restoration that allows a door to be held open at any desired position through adjustable tension. Crafted from heavy-duty stainless steel, the 4433 model serves as a robust solution for commercial door security and wall protection in high-traffic schools, offices, and healthcare facilities.

Adjustable Tension for Standard Commercial Openings

The ABH 4433 is engineered to provide precise control for standard 36-inch doors, allowing facility managers to regulate traffic flow and prevent impact damage. It acts as a proactive solution for door surface repair by managing the door's swing with mechanical reliability:

• Customizable Friction Hold-Open: Unlike standard "click-in" stops, the friction mechanism allows the door to stay open at a set point. The resistance can be adjusted to resist light drafts or heavy traffic, assisting facilities in meeting ADA requirements for accessible passage.
• Field Adaptable Functionality: This unit is multi-functional and can be modified on-site. The friction mechanism can be adjusted to act as a Stop Only function, providing a versatile solution for door restoration if room usage or fire safety protocols change.
• Variable Stop Points: The stop/hold-open position can be set in 5-degree increments ranging from 85° to 110°, allowing you to protect wall-mounted monitors, equipment, or millwork by stopping the door at a precise angle.
  
• Non-Handed & Reversible: The 4433 is completely non-handed, making it a reliable stock item for maintenance teams as it can be installed on both left and right-hand doors without specialized modification.
  

Industrial-Grade Stability with Thru-Bolt Engineering

Overhead hardware on standard-sized doors is subject to significant leverage and stress. The ABH 4433 is built to remain secure and stable for the life of the opening:

• High-Strength Thru-Bolt Mounting: To ensure the unit remains rigid and never pulls loose from the door face, it is installed using thru bolts (included). This "clamping" method provides superior stability over standard screws, serving as a permanent solution for door edge reinforcement.
• Architectural Satin Stainless Steel: Finished in US32D (630), the 3/4” wide stainless steel channel and 3/16” thick arm are highly resistant to corrosion and withstand the aggressive cleaning agents common in institutional environments.
• Safety & Fire Compliance: When configured in the "Stop Only" function, this hardware is Warnock Hersey listed, ensuring it meets rigorous safety standards for manufactured door components.
• Precision Internal Sliding Block: The mechanism utilizes a high-durability sliding block within the channel to ensure smooth, quiet, and consistent friction throughout the life of the product.

Technical Details & Specifications

• Brand: ABH Manufacturing
• Model: 4433 (Friction Hold-Open Series)
• 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 4433?

For standard-width commercial doors that require adjustable tension to stay open, the ABH 4433 is the highest-performing solution for commercial door security. Its combination of thru-bolt stability and customizable friction makes it a reliable, long-term solution for door restoration. By effectively controlling the door's range of motion, the 4433 prevents frame fatigue and wall damage while maintaining a clean, professional architectural aesthetic.