Sargent 489 Grade 1 Exit Function Deadbolt with 1" Throw Bolt - Heavy Duty Non-Keyed Commercial Lock

Sargent 489 Series Grade 1 Exit Function Deadbolt with 1" Throw Bolt - Heavy Duty Commercial Lock

Professional Exit-Only Security Solution

The Sargent 489 Series Grade 1 Exit Function Deadbolt is engineered for exit-only doors where keyed entry is not required. This heavy-duty commercial lock features a non-keyed design with interior thumbturn operation and 1" hardened steel throw bolt. Built to ANSI/BHMA Grade 1 standards with door thickness compatibility from 1-3/4" to 2", this deadbolt provides secure egress without exterior access for emergency exits, mechanical rooms, and restricted areas.

Professional Features & Benefits

• Door Compatibility: Accommodates 1-3/4" to 2" door thickness with 2-3/8" standard backset (2-3/4" optional) for versatile installation requirements.
• Grade 1 Certification: ANSI/BHMA Grade 1 certified for the highest level of durability and strength in demanding commercial environments.
• Heavy-Duty Construction: Reinforced steel case with brass components and hardened steel deadbolt provides exceptional durability for commercial applications.
• Exit Function Design: Interior thumbturn operates the deadbolt with no outside cylinder, providing secure egress while preventing exterior access.
• Anti-Tampering Protection: 1" throw hardened steel bolt with anti-saw design resists forced entry and tampering attempts.
• Universal Installation: Non-handed reversible design works with left- or right-swing doors for flexible installation options.
• Professional Applications: Ideal for emergency exits, stairwells, mechanical rooms, utility doors, and other restricted access areas requiring secure egress.
• Manufacturer Warranty: 30 Year Limited warranty for added confidence and long-term protection.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness from 1-3/4" to 2", backset options, and handing as applicable to this product.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces.
3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Emergency Exit Doors
• Mechanical and Utility Rooms
• Stairwell Access Points
• Back-of-House Commercial Spaces
• Restricted Access Areas
• Fire Exit Compliance Applications
• Industrial Facility Security Points

Why Choose Sargent Quality?

Sargent 489 Series deadbolts deliver professional-grade reliability with reinforced steel case construction and hardened steel components rated to ANSI/BHMA Grade 1 standards. The 30 Year Limited warranty provides exceptional long-term value and protection. Engineered for demanding commercial applications where dependable exit function and security are essential, this non-keyed design ensures safe egress while maintaining restricted exterior access.