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CELO, global industrial fasteners and screw manufacturer


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The best in its class for highly demanding plastic assemblies.


The improvements of thread forming REMFORM® II™ “HS” (High Strength) screws result in a more resistant, safe and optimized assembly on fiber-reinforced thermoplastics with great opportunities for cost reduction.

REMFORM® II HS™ screws benefits

  • The optimized design of its asymmetrical thread provides a more ergonomic assembly and increases resistance to pull-out forces, vibration loosening and stripping.
  • The low radial forces minimize the risk of overstressing and cracking of the plastic. It allows for bosses with less external diameter, which offers great opportunities for cost reduction.
  • High torsional strength of REMFORM® II HS™ fasteners ensures a high torque failure, which is an advantage when the fastener is used with high strength or fiber-reinforced thermoplastics.
  • It allows a higher assembly torque and the possibility to work with deeper assemblies without increasing the screw diameter.

remform ii hs, screw for plastic

REMFORM® II HS™ screws design specifications

Current stock references are included below:

  • HS81PA - Pan head screw, TORX® Plus AUTOSERT® recess
  • HSX81PA - Pan head screw, TORX® Plus AUTOSERT® recess, INOX A2
  • HS87PA - Pan head flange screw, TORX® Plus AUTOSERT® recess
  • HS82PA - Countersunk head, TORX® Plus AUTOSERT® recess

Apart from the above mentioned references, we produce customized screws to fit your exact requirements.

To improve their functionality, REMFORM® II HS™ screws can be produced in different head types, recess, dimensions and coating configuration. 

For further information on the options available, please contact our application engineers.

REMFORM®II "HS boss design recommendations

The recommended dimensions for the hole diameter and length of engagement are available at DESIGN GUIDELINES.

REMFORM® II HS™ screws applications

REMFORM® II™ “HS” screws are recommended for assemblies on high strength or fiber-reinforced materials that require

  • High assembly torque.
  • High pull-out resistance.
  • High resistance to vibration loosening.

Automotive, electric material, electronics and household appliances.

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