Hebei Jinan Fastener Co., Ltd. founded in 1992 and located in Yongnian District, Handan City, Hebei Province (China) is one of the professional production enterprises specialized in high strength fastener production, sales, and R&D. Our main products include: Cylindrical Head Welding Nails, High Strength Large Hexagon Head Bolts for Steel Structure, Torsional Shear Bolts for Steel Structure, Drill Tail Wire, Flat Washers for Steel Structure, High Strength Nuts, GB/ISO/DIN/ANSI/JIS/Other Standards- Compliant Fasteners, and Special High Strength Fasteners, which are widely used in highway bridges, airports, high-speed railway stations, large sports venues, super high-rise steel structure buildings, steel structure houses, power towers, and other fields.