CHANGZHOU, China – Changzhou Yongmao Special Fastener Co., Ltd., a manufacturer specializing in cold headed fasteners and precision components, has renewed its ISO 9001:2015 Quality Management System Certification. The certificate, registration number DZ/CN/S2410012Q, was issued on October 31, 2024, and remains valid until October 30, 2027. The certification scope covers the production of fasteners under the GB/T 19001-2016 / ISO 9001:2015 standard, confirming the company's compliance with internationally recognized quality management requirements. This renewal follows the company's initial ISO 9001 certification in 2006 and reflects its continued commitment to consistent, traceable manufacturing practices.
Changzhou Yongmao Special Fastener Co., Ltd. was founded in 1993 and has operated for more than three decades in the fastener industry. The company holds dozens of invention patents and was recognized as a National High-Tech Enterprise in 2023. Its core technical strength lies in the manufacturing of ultra-deep hole, extra-long and slender, and high head-to-shank-ratio products—categories that many standard fastener factories decline. This specialization supports consistent product quality and production efficiency across its multi-station cold heading lines, automatic thread rolling equipment, and in-house testing laboratory.
The company's product portfolio spans cold headed fasteners, special fasteners, non-standard fasteners, custom screws, and a range of category-specific components. These include bicycle thru axles, bike through axles, hollow stem bolts, e-bike axles, EV battery module bolts, extra long bolts, slender bolts, deep hole drilled bolts, hollow bolts, and large head bolts. Materials cover 7075 and 6066 aluminum alloy, 10B21 boron steel, and 20CrMo alloy steel, with performance grades up to 10.9 and finishes including anodizing, electrophoresis, and chrome plating.
The ISO 9001:2015 certification is particularly relevant for international buyers sourcing custom fasteners and OEM fasteners from Chinese manufacturers. It provides verified assurance that the supplier operates a documented quality management system covering design, production, inspection, and delivery. For European and North American buyers, ISO 9001 certification is frequently a baseline requirement during supplier qualification, alongside product-specific approvals and material traceability documentation.
Changzhou Yongmao Special Fastener Co., Ltd. welcomes inquiries from bicycle brands, e-bike manufacturers, automotive tier suppliers, and industrial equipment builders seeking cold heading services, custom screws made to drawing, and non-standard fasteners with low MOQ trial options. The company provides factory-direct quotations and supports sample development for new projects. For more information, visit www.yonmach.com.
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Changzhou Yongmao Special Fastener Co.,Ltd.
