b&m-FORM®
Universally usable direct screwing system in all ductile metal materials
In contrast to „trilobular“ screws, the b&m-FORM® is designed with a circular cross-section affecting the entire threaded area. The forming zone is also provided with fully and sharply pointed thread flanks. The geometry of the thread guarantees a secure screw-in process even under unfavorable conditions.
- Diameter: M3 – M10
- Length: depending on diameter / 6mm – 70mm
- Property class: F10 according to b&m-factory standard WN04/14 or according to DIN/ISO specification
- Flank angle: 60°
- Thread pitch: metric according to DIN 13
- Head geometry: feasible solutions according to customer specification
- Coating: optional according to specification (integrated or additionally applied lubricant according to application)
- Thread forming zone: 3 – 4 threads
- Easy hole locating due to the rounded screw tip
- Circular thread cross section and fully pronounced thread flanks offer maximum flank coverage and through this a high overtorque
- Large process window between forming torque and overtorque
- Easy assembly with little need for axial force during the screw-in process
- A metric thread is generated, so that metric equivalents can be used for repairs
- Particularly suitable for aluminum direct screwing in cast core holes
- Suitable for steel and sheet metal applications, zinc and zinc die casting
- Cover screw connection WAPU / Alu – Die-casting