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Our Factory

Yunteng factory
In Handan, China

Hebei Yunteng Factory, situated in HanDan, is a reputable foreign trade company with a diverse portfolio of products. Equipped with over 100 advanced machines, the factory specializes in producing high-quality fasteners, including Hex bolts, Flange Bolts, Carriage Bolts, and various types of nuts and nails. With a wide-reaching export network, the company serves more than 100 countries, including Brazil, Peru, Chile, Russia, Canada, Ecuador, Tanzania, and others. Known for its commitment to precision manufacturing and reliable service, Hebei Yunteng Factory is a trusted partner for businesses seeking quality fastening solutions in the global market.

20 years and counting

Factory figures


Production lines

3500 ton


1200 sets

custom mold

Plants and facilities

Raw Material

Raw materials for fasteners typically include metal materials such as steel, stainless steel, brass, and aluminum.    These materials can be fabricated into various types of fasteners, such as bolts, nuts, screws, rivets, and washers.    As a bolt nut bolt supplier, we source high-quality raw materials for our fasteners to ensure the durability and reliability of our products.    

Our raw materials undergo strict quality control measures to ensure they meet industry standards, such as ASTM and SAE specifications.    We work closely with our raw material suppliers to ensure consistent quality and timely delivery of materials, allowing us to provide our customers with high-quality fasteners for their various applications.

Brand materialss can ensure the stable physical and chemical properties of the bolts.

Cold forged

Cold forged

Our manufacturing units are well equipped with a contemporary lineup of imported high speed multi stationed Bolt formers and Part formers. This enables us to machine standard as well as special products with extreme extrusion, long lengths and bigger body diameters.

As below is our cold forging high speed Headers

MAX Ø 27 mm -- 6

MAX Ø 20 mm---10

MAX Ø 12 mm---14

MAX Ø 6 mm--- 3

In addition, there are over 15 rolling machines.

In special cold forged products, there are cold forged parts in accordance with customer samples and technical drawings, specially designed in engineering-method department.

Thread Rolling

Thread Rolling

The thread rolling section has a wide array of high end machines, this part is very important, Only by ensuring the sharpness and distance of the threaded part can it be combined with the nut stronger and not loose.

Ever since we started manufacturing bolts we have always used thread rolling technology to make threads on our bolts and sockets, thread rolling is a better and much more effective way of performing threads on a bolt as compared to thread cutting, the advantage of thread rolling over thread cutting are tremendous, with thread rolling you get perfect fibre lines and unbroken fibres on the steel and when thread rolling is done after heat treatment they provide much more stronger threads as compared to thread rolling done before heat treatment.

DIN -ANSI- BS -iso can be meet , We guarantee that 100% threads will be tested with go-no-go gauges

Please see below the details of the CNC machines which are available in our factory.

Thread Rolling

Heat Treatment

Heat Treatment

Imported NADCAP certified continuous heat treatment furnaces with huge capacities have been installed to carry out processes including hardening, tempering, carburizing, nitriding and carbonitriding to achieve the desired mechanical properties.

It is this set up that allows us to produce high tensile fasteners in varying we know , 8.8 grade bolt --10.9 grade bolt-12.9 grade bolt.

Finish treatment

Finish treatment

White bolt - blue bolt -yellow bolt, according the demand of customers, Zinc layer thickness is not same.

1-As below is the procedure of hot dipped gavanized:

1.The bolts will be dunked in caustic soda to remove any organic material, such as cutting oil and then quickly rinsed with water.

2.The bolts will be submerged in sulfuric acid. This process removes mill scale and helps the zinc bond to the headed anchor bolts by etching the steel.

3.After the acid bath, the bolts will be rinsed and then dipped in a flux solution which helps the zinc bond to the steel.

4.The bolts will be dipped in a tank of 840-degree molten zinc until the zinc has bonded to the steel.

5.After removing the bolts from the molten zinc, a high-speed spinner removes the excess zinc from the threads to allow for a quality nut-fit.

Consult your bolt customization experts

To provide customers with products and services of quality safety supply chain security, and cost saving.

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