wafer head self drilling screw size

The incorporated washer, on the other hand, serves multiple purposes. Primarily, it increases the bearing surface, thereby distributing the load from the screw more evenly across the material it's screwed into. This prevents damage to the surface, such as splitting or indentation, which can occur when a screw is tightened without a washer. Additionally, the washer can also help in reducing friction and preventing loosening due to vibration.

...

Expansion anchor bolts are known for their strength, durability, and reliability. They are able to withstand heavy loads and provide a long-lasting hold. However, it is important to regularly inspect and maintain the anchor bolts to ensure their continued effectiveness. Over time, factors such as corrosion, vibration, and weather conditions can weaken the anchor bolts, so it is important to monitor their condition and replace them if necessary.

...

Screws are a crucial element in steel drives due to their ability to provide a strong and secure connection between different parts. They are designed with threads that allow them to grip onto the material they are screwed into, providing a tight fit that prevents slippage or unwanted movement. This is particularly important in high-stress applications where even the slightest misalignment or looseness can lead to catastrophic failure.

...