BEST 8K3-7-R - 83K Classroom Cylindrical Lockset - 2 3/4" Backset, 4 7/8" Strike, SFIC (Small Format Interchangeable Core) Sold Less Core, R Function Rotating the inside lever, Turning the key in the outside lever, Rotating the outside lever when not locked by key

 

BEST 8K3-7-R, 83K Classroom Cylindrical Lockset - 2 3/4" Backset, 4 7/8" Strike, SFIC (Small Format Interchangeable Core) Sold Less Core, R Function. cylindrical knob sets that are made from weaker metals, the BEST 8K Series is constructed of steel or brass to ensure the overall strength and durability of the lock.

• No keeper hole on keyed knobs for added security
• Tactile or knurled knob for blind, safety, and accessibility applications
• Breakaway feature option to prevent the lock from being overpowered by a wrench
• Long bearing length in chassis for smooth, wear resistant operation
• Leadline options for radioactive doors (MRI, x-ray, etc.