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  GB Hexagon Bolts

  GB5783 full thread bolts GB5783 blackened bolts GN5782 bolts, steel structure bolts
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  Fine Thread Bolts

  GB5785 half thread bolts DIN960, DIN961 fine thread bolts GB5785, GB5786 full thread bolts
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  Flange Bolts

  GB16674, GB5787, Q184 Flange toothed bolts, flange fine thread bolts Flange galvanized bolts
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  DIN Hexagon Bolts

  DIN931-960 zinc-plated bolts DIN933-961 full thread bolts DIN6914 bolts
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  American Standard Bolts

  American standard HDG bolts American standard BLK bolts American standard ZINC bolts
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  Socket Bolts

  DIN912, GB70 hexagon socket bolts ZINC hexagon socket galvanized bolts hexagon socket galvanized fine thread bolts

Ningbo Zhongli Bolts Manufacturing Co., Ltd., founded in 2003, is a professional manufacturer of high-strength bolts in different specifications for various models. Covering an area of about 10,000 square meters, with a registered capital of 1,500,000 yuan and a total annual production capacity of 10,000 tons, the company has established several sales branches across China. Meanwhile, the company's products are exported to Europe, America, the Middle East, Southeast Asia, and other regions.

The company has strong technical capabilities, complete testing equipment, and a variety of fully automatic multi-station cold and hot heading machines, enabling us to provide you with reliable and high-quality products.

The company mainly produces GB5782, GB5783, GB5785, GB5786, GB5789, GB5790, GB16674, DIN931, DIN933, A325M, ISO4014, ISO4017, A307, and A-10 external hexagon head bolts; GB1228, DIN6914, and A325 high-strength steel structural hexagon head bolts. In addition, we also offer custom manufacturing of non-standard bolts, automotive industry bolts, and B7 threaded rods. The product grades include Gr. 8.8, Gr. 10.9, Gr. 12.9, etc. The company maintains a large stock of products for long-term supply.

The company adheres to the principle of "quality first, credible operation" and aims to become a professional, large-scale, and integrated company through strict quality control. We are dedicated to serving clients with our best-quality service and reliable products. We warmly welcome new and existing clients to visit our company!

Our company fastener manufacturer identification mark is: ZYL.