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Double head knurled hub bolts

33 Years R&D And Manufacturing Experience In Fastener Field

Established in 1985, the company is located in Haiyan, Zhejiang Province. Zhejiang Huasa Furniture Technology Co., Ltd. is a China Double head knurled hub bolts Manufacturers and OEM Double head knurled hub bolts Factory. It’s next to the northern junction of Hangzhou Bay Bridge, with a convenient geographical location, only one hour to Shanghai, Ningbo and Hangzhou. The company covers an area of 110,000 m', specializing in the design, production and sales of various types of fasteners, covering the fields of auto, wind power, nuclear power and subsea oilfield, etc.
Zhejiang Dingsheng Automotive Fasteners Co., Ltd. belongs to Zhejiang New Oriental Auto-parts Co., Ltd., specializing in the production of passenger car fasteners and container floor nails. Equipped with domestic and foreign exquisite production and testing equipment, we have a one-stop production chain of material reforming, molding, machining, tempering and surface treatment, etc. We have built an integrated packaging and storage system which is in the forefront of the industry. We have passed ISO/TS16949 and IS09001 quality management system certification, and obtained IS017025 international standard laboratory certification. Ltd. is gradually growing into one of the most powerful fastener manufacturers in China.
Professional Industry Certification

A commitment to reliable quality

  • Certificate
    ISO14001 Environmental Management System Certificate
  • Certificate
    ISO45001 Occupational Health and Safety Management System
  • Certificate
    SGS-IATF16949
  • Certificate
    Laboratory 17025 Certificate
  • Certificate
    New Oriental IATF16949
  • Certificate
    Measurement Management System 10012 Certificate
  • Certificate
    Zhejiang Manufacturing Certificate

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Industry knowledge

How do double-head knurled hub bolts maintain a stable connection in heavy-load or high-speed mechanical equipment?

In heavy-load or high-speed mechanical equipment, double-head knurled hub bolts can maintain a stable connection state through their unique design and characteristics, ensuring the normal operation and safety of mechanical equipment.
The double-headed design of the double-headed knurled hub bolt allows for simultaneous tightening at both ends. This design allows the bolt to bear force evenly and reduce stress concentration when subjected to vibration and impact caused by heavy load or high-speed operation, thereby improving the Connection stability. At the same time, the double-head design also makes the installation and disassembly process more convenient and faster, improving work efficiency.
The knurled portion is key to the stable connection of double-ended knurled hub bolts. The knurled part effectively prevents the bolt from loosening under vibration or impact loads by increasing the contact area and friction between the bolt and nut. This design allows the bolts to maintain a stable connection state in heavy-load or high-speed mechanical equipment, avoiding equipment failures or safety accidents caused by loose bolts.
The material selection of the double-ended knurled hub bolt also plays an important role in maintaining a stable connection. Usually made of high-strength alloy steel or stainless steel, these materials have excellent mechanical properties and corrosion resistance, and can maintain stable performance for a long time in harsh working environments. This material selection allows the double-head knurled hub bolt to withstand greater loads and impact forces in heavy-load or high-speed mechanical equipment, thereby maintaining a stable connection.
In order to ensure the stability and reliability of double-head knurled hub bolts in heavy-load or high-speed mechanical equipment, double-head knurled hub bolt manufacturers also need to take some necessary installation and maintenance measures. For example, during installation, it is necessary to ensure that the matching accuracy and tightening torque between bolts and nuts meet the requirements; during use, it is necessary to regularly check the tightening status of the bolts and perform necessary maintenance and replacement. These measures can further ensure that the double-head knurled hub bolt maintains a stable connection state in heavy-load or high-speed mechanical equipment.

How does the high-strength alloy steel or stainless steel used in double-head knurled hub bolts adapt to harsh working environments?

Double-ended knurled hub bolts need to withstand tremendous pressure, impact and possible corrosion in harsh working environments, so using high-strength alloy steel or stainless steel is key to ensuring their reliability and durability.
High-strength alloy steel has excellent mechanical properties, including high strength, high hardness, and excellent toughness. These characteristics make the bolts less likely to break or deform when subjected to heavy loads and impacts, thereby maintaining the stability and safety of the structure. In addition, the alloy elements in alloy steel can improve its corrosion resistance and reduce the risk of rust in harsh environments such as moisture, acid and alkali.
Stainless steel, as a material with excellent corrosion resistance, also plays an important role in the manufacture of double-ended knurled hub bolts. Stainless steel contains a large amount of chromium, which can form a dense oxide film with oxygen, effectively preventing direct contact between the steel and the external environment, thus resisting corrosion. In addition, alloy elements such as nickel and molybdenum are added to stainless steel to further improve its corrosion resistance and mechanical strength.
In terms of adapting to harsh working environments, the combined application of high-strength alloy steel and stainless steel has shown excellent results. The high strength of alloy steel ensures the load-bearing capacity and impact resistance of the bolt, while the corrosion resistance of stainless steel effectively extends the service life of the bolt. In addition, by optimizing the material's microstructure and manufacturing process, the performance of double-ended knurled hub bolts can be further improved to adapt to more demanding working environments.
Double-head knurled hub bolts Manufacturers use high-strength alloy steel or stainless steel to ensure that they can maintain stable performance and reliable connections in harsh working environments, thereby ensuring the safe operation of mechanical equipment.