Only for professionals

B 193 

RIPP LOCK® self-locking nuts
Material: Steel | Surface: bright

Diameter (d)


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Item no.: W19310010


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Item no.: W19310010
Böllhoff standard 193 | Steel | Strength class 10 | bright | Cr (VI) - free | metric thread

The RIPP LOCK® self-locking nuts are reliable fasteners for securing screw connections against loosening. The preload force is maintained even under high dynamic loads. With RIPP LOCK®, the nuts have a special mechanical securing effect against automatic loosening of the connection. This is created by radial ribs that act on the component over the entire contact surface. During assembly, the radial ribs are impressed into the respective mating part by the applied preload force. The resulting form fit prevents the connection from turning loose. Additional safety devices, washers and lock washers are not required. The component surface of even sensitive materials is protected

• Reliable anti-rotation device
• Preservation of the preload force even under high dynamic loads
• Saves washers, spring washers or other additional safety devices

Diameter: M10

technical details

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Application Joining by bolt, joining by screw
Cr(VI) Note Cr(VI)-free
da max. 10,8
da min. 10
dc max. 21
dc min. 20,4
Diameter (d) M10
e min. 16,64
Flange/washer with flange
Force application Hexagon head
h 1,6
h max. 1,8
h min. 1,4
Installation method Screw into place with tool
m 8,5
m max. 8,79
m min. 8,21
Material Steel
Pitch (P) 1,5
r max. 0,6
Risk hydrogen embrittlement
RoHS conformal
s max. 15
s min. 14,73
Surface bright
Thread type Metric thread
Tool size SW 15


You can download CAD-files from our catalog on partcommunity: To Böllhoff partcommunity
Title Language Version File Download
RIPP LOCK® screw lock: Efficient and secure English 8210/21-V1-EN (WBH) 1.03 MB / PDF
Fastening and assembly technology: Products and services English 1180/21-V1-EN (WBH) 8.79 MB / PDF
Data sheet: Technical information and dimensions of the product English 02/2023 129.86 KB / PDF
Böllhoff bulletin: Changeover to Cr6+-free protective zinc layers for fasteners English 1622/15.02 894.98 KB / PDF


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