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carriage bolt

Metal Bolt
January 22, 2026
Category Connection: Metal Bolt
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Tags:
#Carbon Steel Bolt #U Shape Bolt #Metric Threaded Rod
Brief: Watch as we walk through the full process, from initial setup to real-world testing of our M10 M7 304 SS A2-70 SUS304 Carriage Bolts. This video demonstrates the pickling and passivation treatment that removes scale and restores the protective chrome-oxide film, ensuring corrosion resistance for demanding applications like food equipment and automotive assemblies.
Related Product Features:
  • Manufactured from 304 stainless steel with A2-70 grade for high strength and corrosion resistance.
  • Pickled and passivated surface treatment removes scale and restores a protective chrome-oxide film.
  • Conforms to DIN 603, ISO 8678, ASME B18.5, and EN 14399-7 dimensional standards for consistency.
  • Maintains 700 MPa tensile strength even at high temperatures up to 150°C during pasteurization cycles.
  • Features a consistent matte sheen finish that matches 2B stainless steel sheets.
  • Designed for automatic assembly lines with precise head height, square width, and thread fit.
  • Ideal for corrosive environments like winery tank hoops exposed to caustic cleaning solutions.
  • Suitable for automotive, mechanical, energy, and architectural applications requiring durability.
  • Manufactured from 304 stainless steel with A2-70 grade for high strength and corrosion resistance.
  • Pickled and passivated surface treatment removes scale and restores a protective chrome-oxide film.
  • Conforms to DIN 603, ISO 8678, ASME B18.5, and EN 14399-7 dimensional standards for consistency.
  • Maintains 700 MPa tensile strength even at high temperatures up to 150°C during pasteurization cycles.
  • Features a consistent matte sheen finish that matches 2B stainless steel sheets.
  • Designed for automatic assembly lines with precise head height, square width, and thread fit.
  • Ideal for corrosive environments like winery tank hoops exposed to caustic cleaning solutions.
  • Suitable for automotive, mechanical, energy, and architectural applications requiring durability.
FAQs:
  • What standards do these carriage bolts comply with?
    Our carriage bolts are manufactured in compliance with DIN 603, ISO 8678, ASME B18.5, and EN 14399-7 dimensional standards to ensure consistent quality and fit for automatic assembly lines.
  • How does the pickling and passivation process benefit the bolts?
    The pickling process removes scale from the surface, while passivation in nitric acid restores a 1 nm chrome-oxide film, enhancing corrosion resistance and making them suitable for harsh environments like food equipment and winery applications.
  • What applications are these stainless steel carriage bolts suitable for?
    These bolts are designed for high-strength applications across various industries including automotive engines, mechanical assemblies, energy equipment, architectural structures, and winery tank hoops where corrosion resistance is critical.
  • What temperature resistance do these A2-70 carriage bolts offer?
    The A2-70 grade carriage bolts retain 700 MPa tensile strength at elevated temperatures up to 150°C, making them ideal for applications like pasteurization cycles in food processing equipment.
  • What is the temperature resistance of these stainless steel bolts?
    The A2-70 grade bolts retain a tensile strength of 700 MPa even at elevated temperatures up to 150 °C, making them suitable for processes like pasteurization cycles.
  • What standards do these carriage bolts comply with?
    Our carriage bolts are manufactured in compliance with DIN 603, ISO 8678, ASME B18.5, and EN 14399-7 dimensional standards to ensure consistent quality and fit for automatic assembly lines.
  • How does the pickling and passivation process benefit the bolts?
    The pickling process removes scale from the surface, while passivation in nitric acid restores a 1 nm chrome-oxide film, enhancing corrosion resistance and making them suitable for harsh environments like food equipment and winery applications.
  • What applications are these stainless steel carriage bolts suitable for?
    These bolts are designed for high-strength applications across various industries including automotive engines, mechanical assemblies, energy equipment, architectural structures, and winery tank hoops where corrosion resistance is critical.
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