Description
The BEST 9K57T15DSTK is a Grade 1 cylindrical lock engineered for commercial and institutional doors where durability and security matter. Tested to over 4 million cycles, it resists lever sag, requires minimal maintenance, and features a pre-assembled hub design that simplifies installation in five steps. Ideal for facilities managers and security professionals seeking long-term reliability.
This lock accommodates 1 3/4" or 2 1/4" door thickness with a 2 3/4" backset and accepts BEST interchangeable cores for fast rekeying and masterkeying flexibility. The 9K57T15DSTK includes ANSI 2 3/4" strike and solid stainless steel 9/16" throw latch. As an authorized BEST dealer, E.D. Locks offers expert guidance on keying options, door prep, and installation. Contact sales@edlocks.com or call 1-877-207-6067 for technical support.
Specifications
- Grade: 1
- Latch: Solid stainless steel, 9/16" throw
- Latch face: Front 2 1/4" and 1 1/8" beveled
- Lever handles: Plated zinc alloy
- Trim finish: Satin Chrome
- 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 for 1 3/8"
- Door prep: 2 1/8" diameter cross bore
- Backset: 2 3/4" standard; 3 1/2" and 5" available
- Cylinder: 6-pin non-IC brass or 6/7-pin SFIC option
- Keyways: LFIC, Non-IC (COR, MED, SAR, SCH, YAL)
- Cycles tested: Over 4 million
