120+ high-speed cold heading headers, planetary thread rolling lines, automated continuous heat-treatment furnaces, and 100% optical sorting metrology.
By combining cold forging with rolled threading, our fasteners achieve superior grain structure alignment and up to 30% higher fatigue life than cut-thread screws.
Multi-die progressive cold forging up to 6 stations. Produces up to 350 complex blanks per minute with grain flow unbroken along the screw head contour.
Planetary and cylindrical thread rolling dies that cold-work thread flanks without metal cutting, generating burnished mirror thread roots with Ra < 0.4µm.
Controlled protective atmosphere carburizing, carbonitriding, and hardening furnaces ensuring homogeneous core and surface hardness up to Class 12.9.
Geomet 500/720, Dacromet, Zinc Flake, Electro-Zinc Nickel, Passivation, and Black Oxide delivering over 1,500 hours ASTM B117 salt spray protection.
Specialized micro-cold headers capable of fabricating miniature screws down to M0.6 diameter for endoscopic surgical equipment and micro-electronics.
Multi-spindle Swiss CNC turning centers for cross-drilled head safety wires, precision undercuts, and specialized automotive wheel hub spline geometry.
Zero defect PPM is achieved through integrated laser optical sorting. Every single screw passes high-speed optical vision checks before packaging.
Measures thread pitch, major/minor diameter, head runout, and recess depth at 800 parts per minute.
Sub-micron dimensional verification for aerospace and automotive PPAP Level 3 documentation.
Accelerated corrosion verification confirming 500 to 1,500+ hour rust-free performance.
Full metallurgical traceability with chemical spectrometry and tensile/proof load test charts with every batch.
