nylon head self drilling screws

Another benefit of self-drilling screws is their resistance to corrosion. Many self-drilling screws are coated with materials such as zinc or stainless steel to protect them from rust and corrosion. This is particularly important when working with heavy steel components that are exposed to harsh weather conditions or corrosive environments. The corrosion-resistant coating ensures the longevity of the screws and helps maintain the integrity of the structures they are holding together.

...

Cross bracing is another type of steel post bracing system that consists of steel members installed in a crisscross pattern between columns and beams
steel
steel post bracing. This type of bracing helps to distribute lateral forces evenly throughout the structure, reducing the risk of localized failure and ensuring the overall stability of the building. Cross bracing is often used in industrial buildings, warehouses, and other large structures where lateral forces are a significant concern.

...