Description
The BEST 9K57 is a Grade 1 cylindrical lock engineered for commercial and institutional doors requiring maximum durability and security. Built for high-traffic environments, it features a low-maintenance design that protects internal components from daily wear, reducing long-term ownership costs and service calls compared to standard locks.
This lock accommodates 1 3/4" and 2 1/4" door thicknesses with a 2 3/4" backset, and supports interchangeable SFIC or 6-pin cylinders in multiple keyways including Schlage, Yale, and Medeco. As an authorized BEST dealer, E.D. Locks provides expert keying assistance and configuration guidance at 1-877-207-6067 or sales@edlocks.com to ensure proper installation and masterkeying setup.
Specifications
- Grade: 1 (ANSI tested over 4 million cycles)
- Latch: Solid stainless steel, 9/16" throw, 2 1/4" and 1 1/8" beveled fronts
- Lever handles: Plated zinc alloy
- Trim: Brass or bronze
- Strike: ANSI 2 3/4" standard; S3 4 7/8", S3 7/8" flat, and 7/8" flat (STK) available
- Chassis: Zinc alloy and corrosion-treated steel, 2 1/16" diameter
- Door thickness: 1 3/4" or 2 1/4"; spacers available for 1 3/8"
- Door prep: 2 1/8" diameter cross bore
- Backset: 2 3/4" standard; 3 1/2" and 5" available
- Cylinder options: 6-pin non-IC or SFIC (6 or 7-pin)
- Keyways: LFIC (SCHRC-Schlage), Non-IC (COR-Corbin-Russwin, MED-Medeco, SAR-Sargent, SCH-Schlage, YAL-Yale)
