Hebei Fengmai Metal Products Co. Ltd, based in China, lists nuts on Global Trade Plaza. The company offers products such as Directly Factory Supply All Kinds Of Lock Nut and Large Hex Bolt And Nut. These include lock nuts made from carbon steel grades Q235B/10B21/35K/45# and stainless steel 304/316/316L, as well as large hex bolts and nuts in sizes ranging from M30 to M100. The lock nuts are available in types including nylon lock nut, metal lock nut, spring lock hex nut, all metal lock nut, and torque lock nut, with grades 4/8/10/12 and finishes such as zinc plating, black oxide, and hot dip galvanized. The company lists 1990 as its year of establishment. Buyers can send an enquiry through Global Trade Plaza.