M8 M10 M12 Spiralöl-Kit Befestigungszubehör Reparaturwerkzeug Gewinde Reparatur-Einsatz
ab 6,51 €
Because of a certain elastic, can make the load on the thread is more even, eliminate the screw and screw hole deviation between the pitch and tooth type, and can absorb vibration, thus increasing the screw thread connection strength and resistance to fatigue strength.
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