Product Description

9K57B16LSTK690LM Best 9K Series Office Function Cylindrical Lever Locks with Curved without Return Lever Design Accept 7 Pin Best Core in Dark Bronze Finish

The Best 9K57B16LSTK690LM series is one of the toughest heavy-duty cylindrical locks on the market with the proven Grade 1 security. The 9K series is ideal for retrofit and new construction alike. The Best 9K series are listed by the BHMA for A156.2, Series 4000, Grade 1. This series is simple, safe and dependable protection.

Office lock: Latch operated by rotating the inside lever, rotating the outside lever only when the inside push button is out or turning the key in the outside lever; Push button is released by turning the key in the outside lever or rotating the inside lever, closing the door does not release the push button; Outside lever locked by pushing the inside button; Inside lever is always unlocked;

Features and Benefits:

• Dark Bronze finish
• Backset: 5"
• Handing: Non Handed
• Core is not included
• Single cylinder function
• Cylinder: 7-Pin housing; accepts all BEST SFIC cores
• Door thickness: Available for 1-3/4" to 2-1/4" doors only
• Latch: Solid brass 9/16" throw. Front 2-1/4" x 1-1/8" beveled
• Strike: STK standard (2-3/4" x 1 1/8" with curved lip)
• Projection on door - Approx 2-3/4" when mounted on 1-3/4" door.
• Lever style: 16 - Curved without return lever
• Rose style: L - 3-1/2" convex no ring
• Deadlocking latchbolt standard
• Fasteners: All mounting screws are concealed. All machine screws (AMS) standard.