Custom Tungsten Carbide Rectangular Hole Die Bushing, Precision Cold Heading Trimming Mold Insert for Fastener Production

  • Premium Tungsten Carbide Material
    High hardness, excellent wear resistance, strong impact toughness, greatly extend service life, reduce frequent mold replacement costs.
  • Ultra-precision Machining
    Inner rectangular hole & outer circle tolerance controlled within ±0.005mm; mirror polished inner surface, no burrs on finished workpieces, stable mass production accuracy.
  • Stable Structure Design
    Integrated cylindrical die sleeve structure, uniform stress distribution, suitable for high-speed cold heading, trimming, forming process of bolts, nuts and special fasteners.
  • Customized Service Supported
    Accept ODM & OEM, produce according to customers’ drawings or samples. Different carbide grades (YG8/YG20C etc.) optional for different working conditions.
  • Strict Quality Inspection
    Full dimensional inspection, hardness test before delivery. Stable consistency for bulk orders, perfect for fastener, automotive hardware manufacturing lines.