Zhejiang Zhongbiao Automobile Fastener Co., Ltd. is a specialized company that develops, produces, sells, and provides services for automobile fasteners. It is located in Jiashan, Zhejiang province and covers an area of about 30 acres. They specialize in various types of automobile fasteners, including welding nuts, flange nuts, lock nuts, cap nuts, and tire nuts. They can also customize products according to the requirements of different manufacturers.

Their affiliate company, Zhejiang Zhengsheng Precision Mould Co., Ltd, provides support to many large-scale automotive fastener enterprises. The company strictly implements the Ts16949:2009 quality management system and aims to become an outstanding supplier in the automobile, railway, and aviation aerospace fields.