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

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

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Success case

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

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)

2026-06-28 11

qianxi626-001.jz.aitsite.cn

Success case

Previous: Special M4 screws rust when exported abroad

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

Relevant cases

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%

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

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: 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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Zhejiang Public Security Network No. 33048102241102 Zhejiang ICP No. 2024111839-1

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

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

Special M4 screws rust when exported abroad

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.