B 53040

Vargal® self-locking nuts

clamping part with spring made of phosphated spring steel
Flange/washer: without flange | Thread type: Metric thread | Force application: Hexagon head | Material: Steel 8 | Installation method: Screw into place with tool | Surface: zinc-plated | Product group: Nuts
Diameter (d)
M5
M8
M10
M12
M16
M20
M24
M30
Packingunit (pcs.)
50
100
200
400
500
1000
Please select a version to see prices and availability.
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
Material version:
8
Cr(VI) Note:
Cr(VI)-free
Flange/washer:
without flange
Risk hydrogen embrittlement:
Thread type:
Metric thread
Force application:
Hexagon head
Material:
Steel 8
Installation method:
Screw into place with tool
Surface:
zinc-plated
Application:
Joining by bolt, joining by screw
Product group:
Nuts
RoHS conformal:
Material:
Steel
Data sheet: Technical information and dimensions of the product
PDF
ENG
02/2023
Böllhoff bulletin: Changeover to Cr6+-free protective zinc layers for fasteners
PDF
ENG
1622/15.02
Fastening and assembly technology: Products and services
PDF
ENG
1180/21-V1-EN (WBH)
The Manual of fastening Technology: 8th edition
PDF
ENG
8100/23-V1-EN (WBH)