betzer pentaform
Optimized locking device for material with lower tensile strength 
Optimized locking device for material with lower tensile strength, e.g. plastics or light metals.

  • Function

    The ribs cause the supporting surface to deform and then harden, thus increasing the loosening torque of the screw.

  • Features

    • More efficient loosening pro­tection than tooth lock washers or the like.
    • Reduced number of assembly components.
    • Improved feeding at the assembly compared to screws combined with washers.
    • Reduced costs for the assembly in total.
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