Description

The Hollow Thru‑Axle YM12‑AO‑K is a professional-grade bicycle axle produced by Changzhou Yongmao Special Fastener Co., Ltd., under our brand YONGMAO. This component is specifically engineered for modern bicycle frames that require a lightweight yet sturdy axle solution. The hollow design reduces unsprung mass while maintaining the structural integrity needed for aggressive riding, making it suitable for mountain bikes, road bikes, and e‑bike platforms.

As a leading China fastener manufacturer, we leverage decades of technical expertise in cold forming and deep‑hole machining. Our production process incorporates the Cold Heading Process to achieve precise dimensional consistency and material density, which is critical for axle applications where concentricity and surface finish directly affect wheel alignment and bearing life. Each batch of YM12‑AO‑K axles undergoes rigorous inspection using our in‑house laboratory equipment, including universal testing machines, hardness testers, and concentricity gauges, to ensure every piece meets our strict internal standards.

We understand that bicycle brands and aftermarket suppliers often require variations in length, thread pitch, or head design. Therefore, we offer flexible customization under our Custom Non‑standard Fasteners service. Whether you need a specific anodized color, a different flange shape, or a unique drive interface, our engineering team can adapt the YM12‑AO‑K platform to your exact drawings. Our agile production lines and multi‑station cold headers allow us to handle both prototype runs and high‑volume orders with consistent quality.

Quality assurance is at the core of our operations. As an ISO9001 Certified Manufacturer, we maintain documented procedures for raw material incoming inspection, in‑process monitoring, and final testing. Our quality management system ensures traceability from steel coil to finished axle. We also offer various surface treatments – such as zinc flake coating or anodizing – upon request, to enhance corrosion resistance and aesthetic appeal.

While the YM12‑AO‑K is primarily designed for bicycle applications, our manufacturing capabilities extend to automotive, high‑speed rail, and construction machinery fasteners. However, this specific model is tailored for the bicycle sector, delivering a balance of strength, weight, and precision. Partner with YONGMAO for reliable supply, competitive pricing, and technical support from concept to delivery.

Specification Comparison of Various Bicycle Through Axles