Sargent 99-0279 Guardbolt Assembly – LHRB Replacement for 80 Series Exit Devices

The Sargent 99-0279 is a genuine OEM Guardbolt Assembly engineered as a direct replacement component for Sargent 80 Series exit devices. Handed Left Hand Reverse Bevel (LHRB), this assembly restores proper guardbolt operation to compatible 80 Series units. As an authentic Sargent part, it ensures precise fit, correct tolerances, and long-term reliable performance — the same quality built into the original device.

Institutional Grade Features & Benefits

• Genuine OEM Part: Manufactured by Sargent to exact factory specifications, ensuring a true drop-in fit with no modification required on compatible 80 Series exit devices.
• Correct Handing – LHRB: Specifically configured for Left Hand Reverse Bevel applications; refer to the handing diagram included with your listing to confirm door hand before ordering.
• Restores Device Integrity: Replaces a worn, damaged, or missing guardbolt assembly to bring the exit device back to full manufacturer-specified function.
• 80 Series Compatibility: Designed and validated for use with Sargent 80 Series exit device models 8313 and 8913.
• Reduced Downtime: Using the correct OEM assembly minimizes installation time and eliminates the trial-and-error associated with aftermarket alternatives.
• Commercial & Institutional Grade: Suited for the demanding environments — schools, hospitals, government facilities, and commercial buildings — where Sargent 80 Series exit devices are commonly installed.

Technical Specifications

• Compatible Exit Device Models: Sargent 8313, Sargent 8913
• Series: Sargent 80 Series
• Handing: LHRB (Left Hand Reverse Bevel)
• Part Type: Guardbolt Assembly
• OEM Status: Genuine Sargent replacement part

Technical Details

Door Handing Reference

Parts List Illustration