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Böllhoff standard 53040 | steel | 8 | zinc-plated | Cr (VI) - free | metric thread
Vargal® self-locking nuts offer reliable protection against the automatic loosening of screw connections even with strong vibrations. A metallic clamping part in the form of a coil spring is integrated. This compresses the fourfold slit, elastic collar together. The clamping force acts uniformly on the threads of the screw and does not damage the thread. The clamping force is maintained even in case of repeated reuse. The Vargal® lock nuts are processed in the same way as conventional nuts and comply with the German Federal Railway Standard BN 205 107 B
Advantages:
• Integrity of the threads despite high clamping force
• Reusable several times while retaining clamping force
• Fulfilment of the German Federal Railway Standard BN 205 107 B
Vargal® self-locking nuts offer reliable protection against the automatic loosening of screw connections even with strong vibrations. A metallic clamping part in the form of a coil spring is integrated. This compresses the fourfold slit, elastic collar together. The clamping force acts uniformly on the threads of the screw and does not damage the thread. The clamping force is maintained even in case of repeated reuse. The Vargal® lock nuts are processed in the same way as conventional nuts and comply with the German Federal Railway Standard BN 205 107 B
Advantages:
• Integrity of the threads despite high clamping force
• Reusable several times while retaining clamping force
• Fulfilment of the German Federal Railway Standard BN 205 107 B
Product group:
Nuts
Material version:
8
Application:
Joining by bolt, joining by screw
Risk hydrogen embrittlement:
Surface:
zinc-plated
RoHS conformal:
Product type:
with locking element
Thread type:
Metric thread
Force application:
Hexagon head
Cr(VI) Note:
Cr(VI)-free
Material:
Steel 8
Flange/washer:
without flange
Installation method:
Screw into place with tool
Material:
Steel
All technical data refer to the measure mm
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The Manual of fastening Technology: 8th edition
Fastening and assembly technology: Products and services
Böllhoff bulletin: Changeover to Cr6+-free protective zinc layers for fasteners