- small screw,micro fastener,mini screw
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Manufacturing Process and Quality Control Technology for Precision Small Screws
Manufacturing Process and Quality Control Technology for Precision Small Screws
Precision small screws are critical fasteners for high-end manufacturing industries such as electronics, medical devices, and precision instruments. Their manufacturing processes and quality control requirements are significantly higher than conventional fasteners. Zhuhai Jiali Hardware Manufacturing Co., Ltd. has accumulated extensive technical expertise and professional experience in the field of precision small screws.
Precision Manufacturing Processes
- Cold Heading Technology: High-precision cold heading equipment ensures dimensional tolerance control within ±0.01mm
- Precision Turning: CNC lathe machining for complex thread structures and special head shapes
- Micro Threading Technology: Stable threading capability for ultra-small specifications below M1.0
- Automated Assembly: Automatic sorting, packaging, and error-proofing systems for micro screws
Surface Treatment Technologies
| Treatment Process | Applicable Specifications | Performance Characteristics | Typical Applications |
|---|---|---|---|
| Nickel Plating | M0.8-M3.0 | Excellent corrosion resistance and electrical conductivity | Electronic connectors, PCB board fixation |
| Black Oxidation | M1.0-M4.0 | Superior wear resistance and aesthetic appearance | Medical device housings, precision instruments |
| Dacromet Coating | M1.2-M5.0 | Exceptional salt spray resistance (over 1000 hours) | Automotive electronics, outdoor equipment |
| Anodizing | M1.0-M4.0 | Lightweight design with excellent insulation properties | Aerospace, new energy vehicles |
Quality Inspection Standards
- Dimensional Accuracy Testing: Coordinate Measuring Machine (CMM) full-size inspection, 100% inspection for critical dimensions
- Mechanical Performance Testing: Tensile testing, torque testing, hardness testing
- Surface Quality Inspection: Visual inspection under magnification (10X-50X), no scratches, burrs, or uneven oxidation
- Reliability Verification: Temperature cycling test (-40℃ to 125℃), vibration testing, life cycle testing
Zhuhai Jiali Hardware Manufacturing Co., Ltd. Expertise
As a professional manufacturer of precision small screws, we provide:
• Full range of precision small screws (M0.8 to M6.0)
• Customized solutions and technical support
• ISO 9001 quality management system certification
• Rapid response service and flexible small-batch procurement support
Technical Center Services
Our Technical Center provides:
• Precision small screw selection consulting services
• Application problem analysis and solutions
• Industry technical documentation downloads
• Technical training and on-site support