Description
The BEST 9K57R16DS is a Grade 1 cylindrical lock engineered for demanding commercial and institutional applications. Built for durability and low maintenance, this lock solves the cost-of-ownership challenge by resisting lever sag, minimizing wear, and lasting longer than standard cylindrical locks even under heavy daily use.
This lock fits standard 2 1/8" cross bores in 1 3/4" or 2 1/4" doors, with 2 3/4" backset. Its interchangeable core accepts multiple keyway options including Schlage, Corbin-Russwin, Medeco, and Sargent, enabling flexible rekeying and masterkeying. As an authorized BEST dealer, E.D. Locks provides expert guidance on keying strategy and installation. Contact sales@edlocks.com or call 1-877-207-6067 for personalized support.
Specifications
- Grade: 1
- Latch: Solid stainless steel, 9/16" throw
- Lever handles: Plated zinc alloy
- Trim: Brass or bronze
- Strike: ANSI 2 3/4" standard; ANSI S3 4 7/8", ANSI S3 7/8" flat, and 7/8" flat 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
- Keying: 6-pin non-IC brass cylinder; 6- or 7-pin SFIC option available
- Keyway options: LFIC (SCHRC-Schlage), Non-IC (COR-Corbin-Russwin, MED-Medeco, SAR-Sargent, SCH-Schlage, YAL-Yale)
- Cycle rating: Over 4 million cycles (exceeds ANSI Grade 1)
