Welcome to the official website of King Seven Industry (Hangzhou) Co., Ltd.

Company Address：2nd Floor, Building 3, No. 17, Yijiang Road, Nongfa District, Chang'an Town, Haining City, Jiaxing City, Zhejiang Province

King Seven Industry (Hangzhou) Co., Ltd.
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Perfect quality management system

Service providers for sheet metal industry

Service Hotline:

15757497169 / 15868347830

King Seven Industry (Hangzhou) Co., Ltd.

Case studies

Contact us

Contact: Mr. Li

Tel: +86 15757497169

Email: liyuhua_qx@126.com

Address: 2nd Floor, Building 3, No. 17, Yijiang Road, Nongfa District, Chang'an Town, Haining City, Jiaxing City, Zhejiang Province

Special M4 screws rust when exported abroad

Special M4 screws rust when exported abroad

King Seven improves the electroplating method: meeting the requirements of salt spray 72H, the screw is in continuous and stable production
The bottom hole of the M3 rivet nut has become larger after oxidation and repair, and cannot be riveted

The bottom hole of the M3 rivet nut has become larger after oxidation and repair, and cannot be riveted

King Seven Design Customization: CLS-M3-2 suitable for 4.4mm bottom hole reduces scrap loss by nearly 20,000 yuan (standard bottom hole 4.2mm)
FHS-M3-6 screws for rivet riveting on galvanized sheet (T=0.8), 1500 sets of rivet marks are scrapped

FHS-M3-6 screws for rivet riveting on galvanized sheet (T=0.8), 1500 sets of rivet marks are scrapped

King Seven patented design: RFHS-M3-6 toothed rivet screws, yield rate increased to over 98%
Leapmotor: The pin on the control panel bracket requires the thrust resistance to be greater than 800N, but the original design can only reach about 400N.

Leapmotor: The pin on the control panel bracket requires the thrust resistance to be greater than 800N, but the original design can only reach about 400N.

King Seven design optimization: 1. Add chamfer to the bottom hole of the riveting 2. Change the interference fit riveting to: the thrust resistance of the expansion riveting is more than 1200N

Contact us

Contact: Mr. Li +86 15757497169

Contact: Mr. Wang +86 15868347830

Email: liyuhua_qx@126.com

Address: 2nd Floor, Building 3, No. 17, Yijiang Road, Nongfa District, Chang'an Town, Haining City, Jiaxing City, Zhejiang Province

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