Plastic Caps with Molded-in Screw Inserts | Insert Molding | OEM
• Expert in insert molding process to integrate metal screws (or threaded inserts, nuts) with engineering plastics in a single step, creating high-strength functional caps.
• Key Process & Value Assurance:

• Superior Bond Strength: Molten plastic flows around and locks into the micro-structure of the metal part, creating a mechanical bond far stronger than press-fitting, preventing loosening.

• High Efficiency: Combines metal and plastic forming into one step, eliminating secondary assembly and reducing cost.

• Enhanced Functionality:
  • Corrosion Sealing: Plastic isolates metal from environment, preventing galvanic corrosion.
  • Electrical Insulation: Ensures safe operation, prevents short circuits.
  • Aesthetic Upgrade: Hides metal, offers various colors and surfaces (e.g., matte, texture).

• Precision Positioning: In-mold fixtures guarantee zero movement and no flash during molding, protecting threads.
  • Rigorous QC: 100% torque test and pull-out test for performance validation.