MING SHEANG DETAILED INDUSTRIAL CO., LTD. - MSf - Premier Precision Metal Stamping Manufacturer.

MSf Quality Control - 50 PPM Excellence | Fastener Inspection

MSf's quality control ensures 50 PPM excellence through material inspection, production control, IEC laboratory testing, and optical sorting for fasteners.

Quality Control Excellence at MSf - Achieving 50 PPM Standards

Comprehensive quality assurance from raw material inspection through final optical sorting, backed by IATF16949 and IEC17025 certifications

Inspection Machine of Ming Sheang

Quality Control

Quality Control at MSf - Ensuring 50 PPM Excellence

At Ming Sheang (MSf), quality is built into every stage of fastener manufacturing. From raw material inspection to final optical sorting, we follow strict processes to ensure our fastening components meet the highest standards,onsistently achieving our 50 PPM quality target.

Material Control – All raw materials are carefully inspected and managed with serial numbers and IDs upon entry to ensure full traceability.

Production Control – Every process follows established SOPs and quality record sheets, with inspections conducted before and during production to maintain stability.

Internal Tooling Team – Our in-house team designs, manufactures, develops, and maintains tooling to guarantee precision and efficiency.

In-house IEC Laboratory – Comprehensive inspections are performed at the beginning, middle, and end of production to ensure dimensional accuracy and compliance with requirements.

Optical Sorting – Products undergo strict manual or automated screening, following SOPs and detailed checklists, to eliminate defective parts before shipment.


By integrating these controls across departments, MSf ensures that every product delivered is reliable, precise, and meets customer expectations. Our commitment: quality without compromise.

How can we ensure our fastener suppliers meet IATF16949 standards and achieve consistent sub-50 PPM defect rates?

MSf's IATF16949 and IEC17025 certified quality control system delivers precisely what automotive OEMs require. Our in-house IEC laboratory conducts comprehensive inspections at production start, middle, and completion stages, while our optical sorting technology eliminates defective parts before shipment. With complete material traceability and production control documentation, we guarantee the reliability and precision your automotive applications demand. Contact us to discuss how our 40+ years of automotive fastener expertise can strengthen your supply chain.

Our commitment to quality without compromise extends to final product screening through manual and automated optical sorting, where defective parts are systematically eliminated before shipment. By coordinating quality controls across material management, production monitoring, laboratory testing, and optical inspection departments, MSf delivers fastening components—including U-nuts, cage nuts, clips, and deep-drawn parts—that meet customer expectations and industry standards. With over 40 years of specialized expertise in precision manufacturing, we provide reliable, traceable, and defect-free fasteners for automotive, data enclosure, building hardware, and electronics industries worldwide.