4 FAQs about Causes of loosening of fastening bolts of photovoltaic panels

Why do bolts loosen?

Many bolts loosen simply because they were never tightened properly in the first place. Under-tightening can result in insufficient preload, allowing the bolt to rotate and loosen under load. If a bolt starts out loose, the clamp force isn't enough to hold the joint together, potentially causing slippage.

What happens if a bolt is too tight?

On the flip side, over-tightening is also a risk. Applying too much force during installation can damage the threads, weakening the fastener's performance. In extreme cases, the bolt may be stripped, leading to failure. It's a fine line to walk, but finding that balance between too loose and too tight is critical.

What happens if a bolt is damaged?

Damaged bolts might give incorrect torque readings, which means they can't hold the required tension and are more prone to loosening. Always inspect your fasteners before installation, and when in doubt, replace them. Using defective bolts is like gambling with your equipment's integrity.

How do you prevent a bolt from loosening?

To prevent bolt loosening, it's crucial to implement the right solutions. Using lock washers, thread-locking compounds, and ensuring the correct torque settings are some of the most effective methods.

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