Dadi autobloccanti tutti in metallo metrici A2 acciaio inox M3 M4 M5 M6 M7 M8 M10-M20
Size: M3 M4 M5 M6 M8-M20. Unique locking principle: By stamping with a mold, the threaded part undergoes slight deformation, forming a thread deformation zone. This design also extends the service life of the nut.