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Direct screwing system for high-stress applications

Thread-forming screws primarily use a trilobular shape of the thread body. In contrast to this conventional solution, the b&m-HIGHLOAD® uses a circular thread cross section that provides an additional load-bearing area.

The b&m-HIGHLOAD® is used primarily in composite structures. It is suitable for extremely high-stress component connections, whether in steel or aluminum. The special feature of this screw: Load tests have shown substantial preload forces and an extremely consistent screw setting behavior with moderate forming torque and high overtorque.

  • Diameter: M8 – M14
  • Length: depending on diameter / 20 mm – 140 mm
  • Property class: 10.9 according to DIN EN ISO 898-1 + induction-hardened forming zone
  • Head geometry: Hexalobular external drive; customized solutions are possible
  • Coating: All common coating systems are possible, including lubricant – integrated or additionally applied
  • Transmission of high preload forces even with a shortened load-bearing thread section
  • Universal application for direct screwing in materials from high-strength steel to tough-soft aluminum
  • Circular thread cross section and fully formed thread flanks offer maximum flank coverage and therefore high overtorques and preload forces
  • The special forming zone geometry provides a self-righting effect and compensates for axial deviations when the screw is positioned.
  • The special forming zone geometry prevents seizing of the screw, making screw-in depths of up to 5 x D (D = thread diameter) in low-strength materials possible.
  • The immense preload forces of the threaded connection prevent radial transverse shifting between the components.
  • Overcomes the challenges of multi-material structures
  • Direct screwing in high-strength and tough-soft materials such as cast aluminum
  • High-load applications with safety and crash relevance
  • Connections between integral subframe and side members
  • Strut connections in the body area
  • Seat connection with a hybrid screw connection in aluminum and in steel