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Böllhoff standard 53070 | spring steel | mechanically galvanized | Cr (VI) - free
Locking washers are retaining elements shaped like a cup spring. They have helical teeth on the upper and lower side. Placed under the head of the bolt or under the nut, the force is distributed over a larger area and preserves the surface of the component. Friction is optimized. By embossing the helical teeth into the mating part, a reliable form fit is achieved. Depending on the application, in addition to the preload force, the securing of the connection against automatic loosening is to be considered
Advantages:
• Optimized force connection
• Reliable form fit due to helical toothing
• Protection of the component surface
Locking washers are retaining elements shaped like a cup spring. They have helical teeth on the upper and lower side. Placed under the head of the bolt or under the nut, the force is distributed over a larger area and preserves the surface of the component. Friction is optimized. By embossing the helical teeth into the mating part, a reliable form fit is achieved. Depending on the application, in addition to the preload force, the securing of the connection against automatic loosening is to be considered
Advantages:
• Optimized force connection
• Reliable form fit due to helical toothing
• Protection of the component surface
Cr(VI) Note:
Cr(VI)-free
Form:
Round
Risk hydrogen embrittlement:
Material:
Spring steel
Surface:
mechanically zinc-plated
Application:
Joining by bolt, joining by stud, joining by screw
Product type:
Resilient washer, spring washers
Product group:
Washers
RoHS conformal:
Material:
Spring steel
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Böllhoff bulletin: Changeover to Cr6+-free protective zinc layers for fasteners
Fastening and assembly technology: Products and services
The Manual of fastening Technology: 8th edition
