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Carbon Steel Grade 12.9 Black Oxide Wheel Bolt Wheel Metal Bolt M6 M8

Metal Bolt
May 27, 2025
Category Connection: Metal Bolt
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Tags:
#T head Bolts #stainless steel shoulder bolts #stepped shoulder bolt
Brief: Discover the high-strength Carbon Steel Grade 12.9 Black Oxide Wheel Bolt, available in M6 and M8 sizes. Perfect for automotive, mechanical, and industrial applications, these bolts offer superior anti-loosening performance and rust prevention with a black oxide finish.
Related Product Features:
  • Made from SCM435 alloy steel with a minimum tensile strength of 1220Mpa and hardness of 39-44HRC.
  • Black oxide treatment provides rust prevention and eliminates reflections.
  • Flange design offers higher preload capacity and superior anti-loosening performance.
  • Ideal for automotive engines, heavy machinery, and bridge construction.
  • Available in various configurations to match different vehicle requirements.
  • Integrated flange eliminates the need for separate washers in many applications.
  • Critical for wheel hub safety, ensuring stable connection between wheels and vehicle.
  • Widely used in mechanical, electronic, automotive, and construction sectors.
Faqs:
  • What industries commonly use Grade 12.9 Black Oxide Wheel Bolts?
    These bolts are widely used in automotive, mechanical, energy, and architectural industries, including applications in engines, heavy machinery, and construction.
  • What are the benefits of the black oxide treatment on these bolts?
    The black oxide treatment forms a protective oxide film that provides rust prevention and eliminates reflections, making it ideal for applications where strict appearance requirements aren't necessary.
  • How does the flange design improve the performance of these bolts?
    The flange design combines a hexagonal head with an integrated flange, offering a larger support area and higher preload capacity, which enhances anti-loosening performance and eliminates the need for separate washers in many applications.
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