Only for professionals

B 53065 

RIPP LOCK® self-locking washers ribbed on both sides
Material: Stainless steel A4 | Surface: -

Diameter (d)


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Böllhoff standard 53065 | stainless steel | A4 | Cr (VI) - free

RIPP LOCK® self-locking washers combine efficiency and a maximum securing effect. They support the optimally secured workpiece connection even under extreme vibrations or dynamic loads. They form-fit into the counterplate and the underside of the screw head. RIPP LOCK® are easy to assemble and disassemble. They can also be re-used several times. Thanks to the low fluctuation of the preload force, the safety elements play their role in materials with low inherent strength such as aluminium, copper, cast aluminium and magnesium alloys, etc.

• Excellent securing effect against automatic loosening even under high dynamic loads
• Excellent for metals with low strength, gentle to the contact surface even with painted and powder-coated surfaces
• Optimal for adjustable fastenings of components (e. g.B. Preload for belt drive) and slotted hole applications

technical details

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Application Joining by bolt, joining by stud, joining by screw
Cr(VI) Note Cr(VI)-free
Form Round
Material Stainless steel
Material version A4
Risk hydrogen embrittlement
RoHS conformal


You can download CAD-files from our catalog on partcommunity: To Böllhoff partcommunity
Title Language Version File Download
Fastening and assembly technology: Products and services English 1180/21-V1-EN (WBH) 8.79 MB / PDF
RIPP LOCK® screw lock: Efficient and secure English 8210/21-V1-EN (WBH) 1.03 MB / PDF
Data sheet: Technical information and dimensions of the product English 02/2022 133.68 KB / PDF



General questions:
Phone: +48 71 387 85 31

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