What is wrong with this filing cabinet lock mechanism, and what options do I have to improve it? - Home Improvement Stack Exchange
Herrin Locking Bar Cabinet Chestnut - Atlantic : Target
Made these little quick and dirty draw bar locks. I hated how a lot of drawer tool boxes don't have a way to lock all your drawers like they used to. So
Prime-Line Drawer and Cabinet Lock, 1-1/8 in., Diecast, Stainless Steel, 13/16 in. Max. Panel U 9945 - The Home Depot
Locking Bar Cabinet | Modernism
ABUS File Cabinet Bar - Pick Size
Amazon.com: File Locking BAR - Gray with Drill Bit - 46" Long - for use on a 4 Drawer File Cabinet : Tools & Home Improvement