26 Years. One Mission: Precision in Every Fastener.

Made from premium high-speed steel and vacuum heat-treated to balanced hardness and toughness. H9 ejector pins fit medium-to-high frequency knockout operations in common header and die-knockout machines. Standard specs cover diameter 2–16 mm and overall length 40–250 mm; custom sizes per drawing are accepted.

M42 cobalt high-speed steel ejector pins deliver excellent red hardness and wear resistance, ideal for high-speed multi-station cold headers, continuous production runs and difficult-to-eject materials. Custom diameters φ2–16 mm and lengths 40–250 mm are available.

H55+ is our commonly used domestic high-speed steel grade, offering a good balance of hardness and toughness for standard fastener cold heading. Hardness, chamfer, concentricity and surface finish can be adjusted per customer requirements.

Punch pins are the core components that directly participate in metal plastic deformation during cold heading. We use SKH51, SKD61, ASP60 and M42 steels with vacuum heat treatment and precision grinding to ensure dimensional stability and long tool life under high temperature and impact.

Our cold heading dies are manufactured from premium domestic or imported tool steels, processed by CNC machining, vacuum heat treatment, cylindrical grinding and wire EDM. Multi-cavity and irregular head cavities can be designed according to customer drawings, material and volume requirements.

For irregular fasteners, non-standard die structures and special material forming needs, we provide custom mold inserts, cores, guide bushings, guide pillars, ejector sleeves and other mold parts. Material selection, heat treatment and surface coating are discussed and confirmed with the customer throughout the process.