The most common heavy hex head screw, these steel screws meet ASTM A325 regulations for structural joints, such as mating I-beams and scaffolding. Material meets ASTM F3125 specifications for quality.
Since the establishment of the company, we have been adhering to the production and sales concept of "quality first, integrity first, and keen innovation", and our products are exported to more than 30 countries and regions in Asia, Europe and the world.