YONGMAO: ISO 9001 Custom Fastener Manufacturer in Changzhou
Cold headed custom fasteners: aligned grain flow for high dimensional accuracy and consistent strength. Ideal for automotive, motor, bicycle, e-bike and EV battery use; long shelf life in dry storage.
YONGMAO is a leading China fastener manufacturer with more than 30 years devoted to custom non-standard fasteners. Cold heading and cold forming turn raw wire into near-net-shape parts, keeping material utilization high while preserving structural integrity. We have mastered ultra-deep-hole, ultra-slender and high-head-to-shank-ratio production—capabilities covered by dozens of invention patents and recognized by our National High-Tech Enterprise status in 2023. Fully automatic multi-station cold headers, thread rollers and CNC machining centres support efficient high-volume output, while tensile, hardness, salt spray and metallographic testing in our own laboratory verify every batch. As an ISO 9001 certified manufacturer, we hold mechanical properties and dimensional accuracy consistent from lot to lot. Cold heading improves grain flow and work hardening, so secondary machining is often unnecessary. In carbon steel, aluminum or stainless steel, YONGMAO offers responsive engineering support and competitive lead times for OEMs worldwide.
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