High-Precision Grooved Pins — Vibration-Resistant Fastening with Streamlined Assembly
In demanding industrial environments subject to high vibration, thermal expansion, and dynamic loads, standard fasteners often suffer from loosening or material fatigue. Our High-Precision Grooved Pins are engineered specifically for critical industrial applications. Produced via precision cold forging, the formed longitudinal grooves yield expanding swages that create a resilient, interference-fit locking mechanism without requiring threads or secondary locking hardware.
Key Product Features
Self-Locking Anti-Vibration Design: When pressed into a standard drilled hole, the cold-formed swages contract dynamically, exerting continuous radial force against the hole wall. This creates superior resistance against intense vibration, dynamic shock, and shear force.
Simplified Assembly & Cost Savings: Eliminates the need for expensive, high-precision reaming or threading processes. Designed to fit straight into standard drilled holes, reducing production steps, cycle time, and overall assembly costs.
Durable & Reusable Performance: Manufactured from high-tenacity, fatigue-resistant alloys, the grooves retain their elastic recovery force even after repeated insertion and removal cycles, ensuring long-term structural integrity.
Technical Specifications & Highlights
Material Options: Available in Carbon Steel, Stainless Steel (SUS304 / SUS316), and Alloy Steel to meet various mechanical stress and environmental requirements.
Surface Treatments: Offered in Zinc Plating (Clear, Yellow, Black), Zinc-Nickel Alloy, Dacromet, or Passivation, achieving salt spray resistance up to 1,000+ hours.
Standards & Customization: Fully compliant with DIN 1471 through DIN 1475 standards. Configurable groove styles include full-length, half-length, center-groove, and reverse taper grooves. Diameters range from M2 to M12 with custom lengths available upon print design.
Target Applications
Automotive & Heavy Industry: Ideal for drive trains, steering linkages, and chassis modules requiring reliable high-shear resistance under continuous vehicle vibration.
Industrial Automation & Robotics: Widely used as precise locating pins, pivot axes, and pneumatic cylinder linkages to maintain tight alignment tolerances.
Power Tools & Fluid Systems: Essential for gearboxes, pump shafts, and internal valve mechanisms to prevent component displacement caused by high-speed operation.