Outdoor trash cans are often targeted by thieves or animals, making keyhole reinforcement essential for security and longevity. Here are the most effective ways to strengthen trash can keyholes:

1. Upgrade to Heavy-Duty Locks: Replace flimsy factory locks with high-quality, weather-resistant padlocks or deadbolts designed for outdoor use. Stainless steel or brass models offer superior durability.

2. Install Protective Covers: Use metal or plastic keyhole covers to shield the lock mechanism from rain, dirt, and tampering. These covers also deter picking attempts.

3. Apply Lubricant Regularly: Silicone-based lubricants prevent rust and ensure smooth operation, reducing wear on the keyhole over time.

4. Reinforce with Metal Plates: Weld or bolt metal plates around the keyhole to add structural support and prevent forced entry.

5. Use Anti-Theft Screws: Replace standard screws with tamper-proof variants to secure the lock assembly firmly in place.

By implementing these methods, you can significantly enhance the security and lifespan of your outdoor trash can keyholes, keeping contents safe and intact.