Only for professionals

B 53055 

SAPER LOCK® self-locking nuts
Material: Stainless steel A2 | Surface: bright

For further information please contact us.


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Böllhoff standard 53055 | stainless steel | A2 | Cr(VI) - free | metric thread

The innovative thread lock principle allows a secure screw connection, even under difficult conditions and for repeated screw connections. The SAPER LOCK® nut can be used as a full-fledged loosening lock, lock nut or as an adjusting and adjusting element.
• Reusable
• Fully functional loosening safety device
• Adjusting nut and loss protection

technical details

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Cr(VI) Note Cr(VI)-free
Flange/washer without flange
Force application Hexagon head
Installation method Screw into place with tool
Material Stainless steel
Material version A2
Risk hydrogen embrittlement
RoHS conformal
Surface bright
Thread type Metric thread


You can download CAD-files from our catalog on partcommunity: To Böllhoff partcommunity
Title Language Version File Download
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 02/2019 135.10 KB / PDF
Fastening and assembly technology: Products and services English 1180/18-V1-02 7.16 MB / PDF

General questions:
Phone: +421240259430(22)

You come from another country? Here you can find further contact persons.