Sargent 558 EN Shim Kit | For 3828 & 12-3828 Rim Exit Devices

The Sargent 558 EN is a specialized architectural spacer kit designed to ensure a level and secure installation of Sargent 3828 Series Rim Exit Devices. When a door face features a glass lite frame or decorative molding that prevents the panic bar from sitting flush, these 1/8" shims provide the necessary clearance for smooth operation. Finished in EN (Aluminum Enamel), this kit provides a clean, professional match for aluminum storefronts and silver-toned commercial doors.

Precision Leveling & Installation Features

• Tailored 3828 Compatibility: Engineered specifically for the Sargent 3828 (Standard) and 12-3828 (Fire Rated) rim exit devices.
  
• Main Chassis Alignment: Includes (2) 1/8" shims to lift the primary pushpad chassis away from the door face, preventing the mechanism from binding against glass frames or door reinforcements.
  
• End Cap Stability: Includes (2) 1/8" shims for the end cap assembly, ensuring the entire length of the exit device is supported and level across the door leaf.
  
• Durable EN Finish: The Aluminum Enamel coating offers a corrosion-resistant finish that seamlessly matches standard satin chrome (US26D) or aluminum (US28) hardware.
• Eliminates Mechanical Binding: By creating a perfectly flat mounting plane, these shims prevent internal friction, ensuring smooth emergency egress and consistent latching.

Technical Specifications

• Model Number: 558
• Finish: EN (Aluminum Enamel)
• Compatibility: Sargent 3828 & 12-3828 Series Rim Exit Devices
• Total Pieces: 4
• Shim Thickness: 1/8"
• Material: Heavy-duty architectural alloy

Important Installation Note:

When utilizing the Sargent 558 shim kit on doors equipped with outside trim (levers or thumbpieces), please ensure that your hardware dimensions are adjusted. Because the shims move the device 1/8" further from the door face, the spindle length, thumbpiece tailpiece, and thru bolt length must be increased accordingly to ensure proper engagement and security.

The Sargent 558 is a critical accessory for retrofit projects. Using factory-spec shims is far more stable than using stacked washers, which can cause the device to wobble or the thru bolts to loosen over time. For a permanent, high-security installation, always verify that your mounting fasteners have enough thread depth to securely grab the door’s internal reinforcing plates after the 1/8" shim is added.