PDQ 631125-830 Rim Strike Shim Kit for 6300R Series Exit Devices  

The PDQ 631125-830 Shim Kit is a precision-engineered hardware alignment solution specifically designed for the PDQ 6300R Series Rim Exit Devices. In commercial door applications, even a slight misalignment between the door leaf and the frame stop can prevent a panic bar from latching securely, compromising building security and fire safety. These 1/8" thick shims provide the necessary build-out to ensure the rim strike is positioned at the perfect depth to engage the exit device’s latchbolt, effectively eliminating "door play" and ensuring a positive, rattle-free closure.

Constructed for high-durability environments, the 631125-830 is compatible with both Non-Fire Rated and Fire-Rated (UL Listed) PDQ hardware. Each kit includes the primary 1/8" shim along with two extended mounting screws, allowing for a fast and secure installation on hollow metal or aluminum frames. By utilizing this strike adjustment kit, facility maintenance teams can resolve latching issues caused by warped doors, settling frames, or thick weatherstripping without the need for costly frame modifications or door replacements.

Strike Alignment & Mechanical Security Function

The function of a Rim Strike Shim is to bridge the gap between the door frame stop and the exit device latch, ensuring the hardware meets strict Life Safety and Fire Code requirements:

• Positive Latch Engagement: The shim moves the strike closer to the device, ensuring the Pullman-style latchbolt fully enters the strike pocket. This prevents the door from being pulled open from the exterior.
• Fire Barrier Integrity: On fire-rated openings, a door that does not latch properly fails to serve as a smoke or flame barrier. The 830 Shim Kit ensures the door stays "positively latched" during high-heat events.
• Weatherstripping Compatibility: When heavy-duty gasketing or weatherstripping is added to a frame, it often pushes the door away from the strike. These shims allow the strike to "follow" the door for a secure seal.
• Reduced Mechanical Stress: Proper alignment prevents the latchbolt from "binding" against the strike, which reduces wear on the internal springs of the 6300 Series panic bar and extends its operational life.

Technical Specifications

Engineered Solutions for Door Maintenance & Security

The PDQ 631125-830 addresses the most common "weak points" in commercial doorway management:

• Corrects Settled Door Frames: Over years of use, commercial door frames can shift or settle. This kit is the primary maintenance solution for restoring security to a door that has developed too much "gap" to latch correctly.
• Prevents Ghost Latching: "Ghost latching" occurs when a door appears closed but the latch hasn't fully seated in the strike. These shims ensure a deep, audible latch engagement every time the door closes.
• Silent Door Operation: By bringing the strike into the correct tolerance, you eliminate the "rattling" caused by wind or air pressure changes in hallways, leading to a quieter and more professional facility environment.
• Simplified Retrofitting: Because the kit includes the necessary longer screws, it is a "ready-to-install" solution that requires no additional trips to the hardware store for specialized fasteners.
• Maintains ADA Compliance: A properly aligned strike ensures that the exit device releases with the required low opening force (5 lbs or less), as the latch won't be under lateral tension (binding) when the user pushes the bar.