Description
The BEST 9KW57 is a heavy-duty cylindrical lock engineered for commercial and institutional doors requiring maximum security and durability. Grade 1 rated and UL listed for 3-hour fire-rated doors up to 4'x10', this lock solves the need for reliable access control on high-traffic entry points in hospitals, offices, schools, and government buildings.
Compatible with standard 2 1/8" door bores and 1 3/4" to 2 1/4" door thickness, the 9KW57 installs with industry-standard backsets (2 3/4", 3 3/4", or 5" available). Available in brass, bronze, or stainless steel finishes with ANSI strike options. As an authorized BEST dealer, E.D. Locks provides expert guidance on keying, specifications, and Miami-Dade County compliance. Contact sales@edlocks.com or call 1-877-207-6067 for technical support.
Specifications
- UL Listed for 3-hour fire-rated, single-swinging doors (4'x10')
- ANSI A156.2 Series 4000 Grade 1
- Door thickness: 1 3/4" to 2 1/4"
- Chassis diameter: 2 1/6" (fits 2 1/8" bore)
- Latchbolt: 9/16" standard (3/4" throw optional)
- Backset: 2 3/4" standard, 3 3/4" and 5" available
- Strike: 2 3/4" x 1 1/8" x 3/32" standard or ANSI 4 7/8" x 1 1/4" x 3/32"
- Trim materials: Brass, bronze, or stainless steel
- Miami-Dade County Product Control Approved (with WS option)
