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Choosing Between Bolt Strength Classes 12.9 and 10.9 for Car Suspension Repair

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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #31 19574344
    LEDówki
    Level 43  
    Is thread brake also suitable for road wheel studs and nuts?
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  • #33 19574415
    Strumien swiadomosci swia
    Level 43  
    LEDówki wrote:
    Is thread brake also suitable for road wheel studs and nuts?
    What for?
  • #34 19574576
    LEDówki
    Level 43  
    As a sealant to prevent moisture and corrosion from getting in. Nuts M18x1.5.
    An M16 grade 8.8 threaded construction rod will hold 1600 kg, or will it let go of the thread sooner? Long nuts, about 5 cm.

Topic summary

The discussion centers on the selection of bolt strength classes 12.9 and 10.9 for car suspension repairs, particularly in relation to the durability and brittleness of these bolts. Participants note that while class 12.9 bolts are stronger, they may be more brittle, which raises concerns about their performance under shock loads in suspension applications. Class 10.9 bolts are commonly used in suspension systems, and their lower strength is often compensated by their ductility. The conversation also highlights the importance of proper torque application and the quality of bolts from reputable manufacturers, as well as the need to match bolt classes with appropriate nuts to prevent thread damage. Specific applications, such as yoke screws in brake systems, are discussed, with recommendations leaning towards using class 12.9 bolts for critical components.
Summary generated by the language model.
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