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Böllhoff standard 196 | Steel | Strength class 8, from M12 strength class 10 | zinc-plated | 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
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
Cr(VI) Note:
Cr(VI)-free
Flange/washer:
with flange
Risk hydrogen embrittlement:
Thread type:
Metric thread
Force application:
Hexagon head
Material:
Steel
Installation method:
Screw into place with tool
Surface:
zinc-plated
Application:
Joining by bolt, joining by screw
Product type:
with locking element
Product group:
Nuts
RoHS conformal:
Material:
Steel
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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
