PROGRESSIVE REPL KNOB/GEAR FOR FOX STYLE POLICE DOUBLE BOLT LOCK — Countryside Locks
high security deadbolt
Amazon.com: CAL Double Bolt Lock - Sliding Patio Door Locks - Child Proof Sliding Door Lock with Anti Lift Security Lock - Replaces Sliding Door Security Bar - Adjustable & Fits Most
Premier Lock Laquered Bronze Double Cylinder Deadbolt in the Deadbolts department at Lowes.com
Sliding Dead Bolt Lock w/ #12 Strike (Double Doors) - MBA USA, Inc.
E62-26D Arrow Lock E Series Deadbolt Double Cylinder in Satin Chromium - Lock Depot Inc
DSC0732DKA4 Door Hardware | Master Lock
Cwlocks 2723 Original Fox Style Police Lock Double Bolt Lock
V-CORME (2-Pack) 304 Stainless Steel 6“(15cm) Security Door Bolt Latch, Double Door Lever Action Flush Bolt Latch, French Door Slide Bolt Lock, Brushed Finish - Amazon.com