For 1/2" (12 mm) Tempered Glass; Custom Units for 3/8" (10 mm) Glass on Special Order Ships in Under a Week Available in Five Finishes Hassle Free Installation Without the Mess of Cement or Silicone This CRL Glass Door Center Lock with Deadlatch in Passage Lock Function installs easily without requiring the use of bolts, silicone, or cement. It is stocked in five attractive finishes for use with 1/2 inch (12 millimeter) heavy glass doors. Extra gaskets are available for use with 3/8 inch (10 millimeter) glass doors. The operation of the lock varies with the lock function. Color: Brushed Stainless Minimum Order: 1 Each Additional Product Information: Passage Lock: Latchbolt is operated by lever on either side. Turning inside lever will always retract the locking mechanism and allow exiting.