BEST 8K Series Heavy Duty Cylindrical Lock, Less Core, Entry (F109) Function - Knob

BEST's 8K lock series delivers dependable security in high traffic areas. With knobs machined from brass or bronze bar stock, you'll feel the weight of BEST's solid construction and high-quality performance. Designed for strength and durability, but also for easy installation and use, BEST 8K knob sets are the leading heavy-duty choice. Rotating knob face provides for easy hand of door change without removing the knob. Friction insert inside rose resists loosening. Steel retractor with low friction bearings for smooth, wear resistant operation. Long bearing length in chassis for smooth, wear resistant operation. Listed by UL for use on 3 Hr, A label for single or double swinging doors.