The KROM-11BF80C26D is a grade 1, heavy duty, satin chrome (C26D), storeroom (80) knob lockset with a flat rose (F). It is UL/cUL Listed and UL 10C fire rated for up to 3 hours. It is designed for door thicknesses from 1-5/8″ (41 mm) to 2″ (51 mm), has a standard backset of 2-3/4″ (70 mm) but can be adjusted to 2-3/8″ (60 mm). The lockset features a 1-1/8″ × 2-1/4″ latch front and a stainless steel latchbolt with a 17/32″ (13.5 mm) throw. A standard ANSI (ASA) curved-lip strike is included. It is equipped with a precision solid brass pin-tumbler cylinder, supplied with two nickel plated brass keys, and uses a Schlage C keyway. The lockset is backed by a seven-year limited mechanical warranty.