CRL 6 inch by 10 inch Center Locks with Deadlatch offer the most diversity in lock function and security. Available in four attractive finishes for 1/2 inch (12 millimeter) heavy glass doors. Extra Gaskets are available on special order for doors using 3/8 inch (10 millimeter) glass doors. The operation of the lock varies with the lock function. Options are available on special order by contacting CRL Technical Sales.