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Solutions: Specialty Threaded Nuts & Bolts


Won’t loosen; no added hardware required!


BosScrew ApplicationThe ITW Shakeproof BosScrew is the only screw for plastics that is designed not to loosen. Its unique thread form, designed with the patented WERCS® technology, works directly with the creeping aspect of plastic to interlock with the boss. The BosScrew uses standard head diameters and has installer-friendly drive-to-strip ratio. Time, temperature and vibration only strengthen the joint.



  • Does not loosen
  • Reduces parts in an assembly; no more inserts or spring components
  • Permits design of shorter bosses to save material
  • Increased clamp load at assembly
  • Eliminates buzz, squeak and rattle

Realize the value of BosScrew™ engineered advantages in applications:

  • Under Hood
  • Instrument Panels
  • Actuators
  • Drive Train
  • Assemblies
  • Seating
  • Routing
  • Attachment

Click here to find the BosScrew for your application!