To keep your door hinges and locks operating smoothly and quietly, regular lubrication is essential. Here's a professional tip for effective maintenance: Recommended Lubricants: For Door Hinges: Use a silicone based lubricant or How to Lubricate Door Locks on Keyed Locks and Deadbolts Door Locks Direct How To Lubricate A Door Hinge for Smooth Operation Lock Lubricant,Door Graphite Lock Lubricant, Professional Door Lock Lubricant with Smart Straw Spray for Sliding Doors Garage Doors and Stuck Locks Walmart Business Supplies How to Lubricate a Door Lock: Importance of Lubricating a Lock Faster Locksmith