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  • Add: Yuyao City, Ningbo City, Zhejiang Province, China
  • Tel: 0086-574-62802870
           0086 132 5584 2788
           0086 158 6732 0069
  • Fax: 0086-574-62802800
  • E-mail: yyjf@yyjfhardware.com
Home / News (Page 4)
  • Meaning of screw and bolt performance level

    Meaning of screw and bolt performance level

    14 Oct 2020

    The performance grades of bolts for steel structure connection are divided into ...

    Read More

  • The difference between screws, screws and screws

    The difference between screws, screws and screws

    09 Oct 2020

    Screw types: Screws are basically divided into two categories: wood screws and m...

    Read More

  • What is the role of fastener surface plating treatment?

    What is the role of fastener surface plating treatment?

    28 Sep 2020

    The surface electroplating treatment of high-strength screw fasteners forms a pr...

    Read More

  • Analysis of the causes of broken non-standard screws

    Analysis of the causes of broken non-standard screws

    22 Sep 2020

    Non-standard screw heading is prone to bad phenomena and cause analysis a. Doubl...

    Read More

  • What is the difference between environmental protection dacromet screws and ordinary dacromet screws

    What is the difference between environmental protection dacromet screws and ordinary dacromet screws

    07 Sep 2020

    What is an environmentally friendly dacromet screw and what is the difference be...

    Read More

  • Strength requirements of the screw material

    Strength requirements of the screw material

    01 Sep 2020

    The material of ordinary screws is made of Q235 (ie A3). The material of high-st...

    Read More

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     Jianfeng Hardware adhering to the "satisfy customer needs," the purpose of the company's excellent service quality, excellent product technology to meet the growing market demand.

  • Product List
    Cold Heading Parts
    Non-standard Stainless Steel Screws
    Non-Standard Rivet
    Finish Cut Part
    Mould Of Cold Formed Part
    Special Stainless Steel Screws
  • Latest News
    Four requirements for non-standard bolt electroplating

    Four requirements for non-standard bolt electroplating

    Feb 23,2021
    Get Excellent Service With High Quality Stainless Steel Fasteners

    Get Excellent Service With High Quality Stainless Steel Fasteners

    Feb 18,2021
    Stainless Steel Screws and Its Features

    Stainless Steel Screws and Its Features

    Feb 02,2021
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