Zinc plated flat washers, fender washers, and other specialty washers are utilized in a wide range of applications, including construction, automotive, machinery assembly, and maintenance. They are employed to provide load distribution, support, and protection for fasteners, ensuring the stability and integrity of assembled components. When selecting these washers, factors such as material composition, size, thickness, and environmental conditions should be considered to ensure compatibility with the specific project requirements and load capacities.

Re-export trade refers to the trade method in which goods are imported from one country or region and then re-exported to another country or region without undergoing substantial processing or changing their nature. Through re-export trade, the origin of goods can be changed to avoid being levied high anti-dumping duties. For example, Chinese steel fasteners can be exported to third countries or regions such as Malaysia and Vietnam first, and then exported to the EU market from these countries or regions.

Additionally, organizations such as the American Concrete Institute (ACI) and International Organization for Standardization (ISO) set forth guidelines and standards for selecting anchor bolt sizes based on structural requirements and safety factors. Compliance with these standards ensures that the chosen diameters meet the necessary performance criteria for safety and effectiveness.