BEST 9K Series Grade 1 Cylindrical Service Station Lock with Keyed Lever

BEST 9K Series Grade 1 Cylindrical Service Station Lock with Keyed Lever

Premium Commercial-Grade Cylindrical Lock Solution

The BEST 9K Series Grade 1 Cylindrical Service Station Lock delivers exceptional security and durability for demanding commercial applications. This heavy-duty cylindrical lock features a 2-3/4" backset, 9/16" latch throw, and Grade 1 BHMA certification for maximum performance. Built with corrosion-treated steel chassis and brass components, this lock accommodates door thickness from 1-3/4" to 2-1/4" with available spacers for 1-3/8" doors.

Professional Features & Benefits

• Grade 1 BHMA Certification: Listed by BHMA for A156.2, Series 4000, Grade 1 providing the highest level of commercial security and durability standards.
• Heavy-Duty Construction: Critical latch and chassis components are brass or corrosion-treated steel with zinc hubs and hardened steel alloy sleeve for maximum attack resistance.
• Versatile Door Compatibility: Available for 1-3/4" to 2-1/4" doors with 2-3/4" standard backset, plus 3-3/4" and 5" backset options for flexible installation requirements.
• Advanced Security Features: Rose locking pin design prevents twisting and breaking under attack, while slotted key release cam maintains key access even when damaged.
• UL Fire Rating: Listed by Underwriters Laboratories for use on 3-hour A label single or double swinging doors for fire-rated applications.
• Service Station Function: Inside lever always unlocked, outside lever operates only when inside push button is out or with key operation for controlled access applications.
• Interchangeable Core Ready: Allows for quick re-keying and customized master keying systems for enhanced security management.
• 10 Year Limited Warranty: Comprehensive manufacturer warranty provides long-term confidence and protection for commercial installations.

Technical Specifications

• ANSI/BHMA: F92
• Backset (Distance): 2-3/4"
• Commercial/Residential: Commercial
• Department: Door Hardware
• Door Hand Direction: Non-Handed
• Duty Level: Heavy Duty
• Electronic: No
• Function Description: Rotating the inside lever, Rotating the outside lever only when the inside push button is out, Turning the key in the outside lever. Inside lever is always unlocked cannot be locked
• Grade: Grade 1
• Handle Type: Lever
• Keyed: Yes
• Keyed Function: Single Cylinder
• Lock Function: Service Station
• Lock Type: Cylindrical
• PDF:9K Series Catalog: https://zensupply.com/content/pdf/best/BA-0003_BEST_9K-Catalog-03-24.pdf
• PDF:Service Manual for 9K Series: https://zensupply.com/content/pdf/best/4418941408539
• Product Attribute: Cylindrical Locks
• Product Category: Mechanical Locks
• Product Function: Service Station
• Product Group: Mechanical Locks
• Product Model: E
• Product Subgroup: Bored Locksets
• Product Substrate: Corrosion-Treated Steel
• Product Type: Leversets
• Series: 9K Series
• Standard Latch: 9/16" Throw
• Standard Strike: 2-3/4 x 1-1/8" with curved lip and box
• Subcategory: Cylindrical Locks
• Warranty: 10 Year Limited

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness from 1-3/4" to 2-1/4" and 2-1/8" diameter hole preparation per ANSI A115.2 standards.
2. Use manufacturer-provided templates to mark mounting hole locations accurately including two additional 5/16" diameter through-bolt holes at 12 o'clock and 6 o'clock positions.
3. Prepare door by drilling required holes and routing as specified in manufacturer instructions, ensuring proper clearance for 2-3/4" projection on door.
4. Install chassis components and secure through-bolt mounting studs to door per manufacturer torque specifications for maximum attack resistance.
5. Adjust lever operation and push button mechanism for proper alignment, smooth operation, and correct service station function throughout full range of motion.
6. Test device operation to verify proper function including inside lever operation, outside lever with push button engagement, and key operation. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Anti-Microbial Option

BEST UltraShield antimicrobial protected coating available in finish 626AM (satin chrome plated) inhibits the growth of bacteria and other microbes on hardware surfaces. Recommended for healthcare, elderly care, education, transportation, food service, and hospitality applications where product cleanliness is a high priority.

Why Choose BEST Quality?

BEST 9K Series cylindrical locks deliver professional-grade reliability with brass and corrosion-treated steel construction rated for Grade 1 commercial applications. The 10 Year Limited Warranty and UL fire rating provide added confidence for demanding installations. Engineered for heavy-duty commercial applications where dependable security performance and long-term durability are essential.