High Quality Spring Pin 30X165mm Heavy Duty Leaf Spring Pin for Truck Trailer Chassis Parts Suspension System Accessories

High Quality Spring Pin 30X165mm Heavy Duty Leaf Spring Pin for Truck Trailer Chassis Parts Suspension System Accessories. Heavy Duty Steel Construction: Made from 40Cr/35CrMo/45# alloy steel with 10.9/12.9 strength class for high tensile strength. Customizable Specifications: Thread, color, and surface treatment (Phosphating/Zinc Plated/Dacromet) customizable per requirements. Anti-Corrosion Surface Finish: Features phosphate, zinc plated, or Dacromet coatings to ensure durability and rust resistance. High Precision Hardness: Hardness ranges from 32-39 HRC with yield strength min 900 MPa to prevent permanent deformation. Professional Manufacturer: IATF 16949 certified factory with 20+ years experience and 100% finished product inspection.