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B 196 

ZAHN self-locking nuts
Material: Steel | Surface: bright

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Description

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Böllhoff standard 196 | Steel | Strength class 8, from M12 strength class 10 | bright | Cr (VI) - free | metric thread

The ZAHN self-locking nuts are mechanical locking devices that reliably prevent the connection from loosening automatically. The locking effect is achieved by locking teeth that penetrate the contact surface with the entire depth of the tooth when tightening. The material to be screwed into must have a lower hardness than the nut. If the screw connection is loosened again, damage to the surface of the support material can be expected. If surface damage is to be avoided, we recommend the use of the RIPP LOCK® self-locking nuts

Advantages:
• Reliable screw locking without additional elements
• Enlarged bearing surface makes washers and spring washers superfluous
• Reduced setting values of the nut

technical details

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Application Joining by bolt, joining by screw
Cr(VI) Note Cr(VI)-free
Flange/washer with flange
Force application Hexagon head
Installation method Screw into place with tool
Material Steel
Risk hydrogen embrittlement
RoHs conformal
Surface bright
Thread type Metric thread

Downloads

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Title Language Version File Download
Fastening and assembly technology: Products and services English 1180/21-V1-EN (WBH) 8.79 MB / PDF
Böllhoff bulletin: Changeover to Cr6+-free protective zinc layers for fasteners English 1622/15.02 894.98 KB / PDF
Data sheet: Technical information and dimensions of the product English 04/2021 127.83 KB / PDF

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