b&m-HIGHLOAD®
Direct screwing system for high-stress applications
Our b&m-HIGHLOAD® thread-forming screw is primarily used in multi-material construction. The screw suitable for highly stressed component joints, be they in high-strength steels or in low-strength aluminum alloys. A screw connection with the b&m-HIGHLOAD® is self-locking and free of play. If required, the threads produced are compatible with metric ISO standard parts.
Functional principle
Conventional direct screwing systems rely on a “trilobular” geometry of the thread body. This means that the thread cross-section has the profile of a heavily rounded triangle. Unlike such conventional solutions, the b&m-HIGHLOAD® uses a circular thread cross-section and offers complete flank coverage. This screw increases the load-bearing capacity of safety and crash-relevant assemblies.
Compared to a trilobular solution, the circular geometry of the b&m-HIGHLOAD® provides an additional load-bearing component (© b&m)
Benefits
- The high strength of the screw in combination with the large flank overlap provides enormous preload forces
- The special groove zone geometry prevents the screw from “seizing” in tough-soft nut component materials – screw-in depths of up to 5 x D (D = thread diameter) possible
- In addition, the groove zone geometry ensures a self righting effect and compensates for lateral deviations during installation
- Cost efficient: Anyone using the b&m-HIGHLOAD® saves work steps and costs for the use of tools and machines
Features
Diameter: M8 – M14
Length: depending on diameter
Property class: 10.9 according to DIN EN ISO 898-1 + induction-hardened forming zone
Head geometry: Hexalobular external drive as standard; customized solutions are possible
Surface: Duplex coating – zinc-nickel or zinc as a base layer with organic TopCoat. Additional coatings on customer request
Technical details
The diagram shows the three phases of the fastening process of a b&m-HIGHLOAD® M14x50 until the overtorque is reached. (©b&m)
Available dimensions
b&m-HIGHLOAD®
THREAD FORMING SCREW – HEXALOBULAR EXTERNAL DRIVING WITH FLANGE –
MATERIAL: STEEL – PROPERTY CLASS: 10.9 ACC TO DIN EN ISO 898-1 – GROOVING ZONE INDUCTIVE HARDENED
Other dimensions, coatings and head shapes are available on request.
