Haining Zhongda Fasteners Co., Ltd. (formerly Zhejiang Haining Nut Factory) is located in Hangzhou, Zhejiang, on the north bank of Qiantang River, Haining City, a tide-watching resort, 19 kilometers west of Hangzhou City, 145 kilometers east of Shanghai City, with Hangzhou-Shanghai Highway in the south and Shanghai-Hangzhou Expressway in the north. In the middle, there is the Hangzhou-Shanghai double-track Jiaxing East-West Avenue that leads directly to the factory, with convenient transportation.

Haining Zhongda Fastener Co., Ltd. (Zhejiang Haining Nut Factory) was founded in 1984 and specializes in the production of hot-forged nuts. There are 7 production lines, equipped with closed and open presses, with capacities of 100 tons, 125 tons (two sets), 160 tons, 250 tons, 400 tons and a series of supporting equipment. Product models: three major thread series, including American standard, German standard, British standard, Australian standard, Italian standard, Japanese standard, and national standard, more than 200 specifications, from 1"-4", M27-M100, various standard hexagonal nuts, thin nuts, square nuts, slotted nuts, connecting nuts, nylon locking nuts and non-standard nuts. More than 90% of the products are exported to Europe, America, Southeast Asia and other countries.

Haining Zhongda Fastener Co., Ltd. (formerly Zhejiang Haining Nut Factory) has 120 employees, 8 technicians, including 4 college graduates and 6 managers. The annual output is more than 4,000 tons, and the output value is nearly 40 million yuan. It is a contract-abiding, trustworthy, civilized unit, and a Class II A enterprise. The factory covers an area of ​​more than 9,000 square meters and a building area of ​​more than 6,000 square meters. It has passed the ISO9001 international product quality system certification in June 2003. In order to thank our customers for their support, the factory will make further efforts to transform itself, tap internal potential, and seek benefits from management, and return to customers and society with high quality, low prices and good services.