Adams Rite 31-0964 Lower Bolt Guide Assembly – 8600 CVR Series

The Adams Rite 31-0964 Lower Bolt Guide Assembly is a genuine OEM replacement component for the Adams Rite 8600 Series Concealed Vertical Rod (CVR) exit device family. Identified as item #9 in the device diagram, the lower bolt guide is a critical mechanical component that keeps the bottom rod aligned and operating smoothly within the door stile. Replacing a worn or damaged lower bolt guide restores proper rod travel and latching function, extending the service life of the overall exit device without requiring a full device replacement.

Compatible Exit Device Series

This lower bolt guide assembly is engineered for use in the following Adams Rite concealed vertical rod exit device series:

• 3600 Series CVR exit devices
• 8500 Series CVR exit devices
• 8600 Series CVR exit devices
• 8675 Series CVR exit devices

Confirm your existing device series and part diagram number before ordering to ensure an exact fit. Concealed vertical rod devices route the top and bottom rods inside the door stile, so correct guide alignment is essential for reliable two-point latching performance.

Why the Lower Bolt Guide Matters

In a concealed vertical rod exit device, the lower bolt guide channels the vertical rod as it travels downward to engage the floor strike upon door closing. A cracked, worn, or misaligned guide causes rod binding, incomplete latching, or accelerated rod wear — all common failure points in high-traffic commercial door openings. Sourcing the correct OEM replacement part number (31-0964) ensures dimensional accuracy and proper fit within the door stile channel.

Applications

• Commercial hollow metal doors with concealed vertical rod exit hardware
• High-traffic egress doors in schools, offices, healthcare facilities, and retail environments
• Preventive maintenance and repair of Adams Rite 3600, 8500, 8600, and 8675 CVR devices
• Facility managers and contractors sourcing CVR exit device replacement parts

Technical Details

Need a complete CVR exit device or comparable alternative? DoorwaysPlus can quote CVR exit device assemblies and replacement parts from preferred commercial hardware lines including Sargent, Hager, and Corbin Russwin — brands recognized for stable, service-friendly product lines. Contact our team for a comparable specification or full device quote.