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Powerful, form-fitting locking of screw connections against loosening and unscrewing
- Type M: for screws with normal head contact
- Type Z: for cheese head and hexagon socket screws
- Hardened spring steel, 420-510 HV 10, GEOMET® 321-coated
- Friction locking thanks to spring force
- Positive locking thanks to specific surface stamping
- Protects the counter surface from damage (washer does not turn during installation).
- Minimal tightening torque distribution
- Universal in use, e.g. also suitable for oblong hole fastening and sheet-metal screw joints
Select RAL-colour code
!! NOTE: On-screen visualisation of the colour differs from real colour shade!!