1. Properly installed screw.
2. The washer is not properly balanced: One side is tightened too much, while the other side is too loose. This uneven installation can lead to sealing issues. As a result, there is an increased risk of leaks.
3. The washer is overtightened, which causes it to crack or tear shortly after installation. This reduces the effectiveness of the seal and increases the risk of leaks.
4. The washer is mounted too loosely on the panel, preventing it from sealing properly. This lack of a secure seal can cause problems and increase the likelihood of leaks.
5. The screw has been overtightened, causing a dent in the sheet or panel. This dent allows water to collect in the low spot, increasing the risk of water buildup and potential damage.