What Is The Best Door Lock Lubricant? And How Do You Use It? WD40 Specialist Silicone For Locks Mr Locksmith What Is The Best Door Lock Lubricant? And How Do You Use It? Houdini Lock Lube Protexall Products, Inc. Graphite Powder for Locks Dry Lubricant Spray to Fix Sticking Keys & Smooth Rotation Anti Rust Lock Cylinder Lube for Door Locks, Padlocks, The Car Door Lock Cylinder and What you Need to Know