Carbon Steel Flange Bolt

When it comes to reliable fastening solutions in industrial applications, the importance of high-quality Flange Bolt cannot be overstated. These specialized bolts are engineered to provide superior holding power and vibration resistance, making them ideal for demanding environments like piping systems, machinery assembly, and structural frameworks. For enhanced corrosion resistance, our Zinc Plated Flange Bolt offers an excellent protective coating, extending the service life even in harsh conditions. Both variants are manufactured from premium carbon steel, ensuring durability and consistent performance under high stress. Industries worldwide rely on these bolts for their integral role in maintaining secure, leak-proof connections, contributing to operational safety and efficiency.


Carbon Steel Flange Bolt is meticulously designed to meet rigorous industrial standards, providing a robust fastening solution that excels in various applications. Its unique integrated flange eliminates the need for a separate washer, distributing the load evenly and preventing loosening under dynamic loads. The serrated underside of the flange bites into the mating surface, offering exceptional grip and resistance to rotation. This design is particularly beneficial in high-vibration settings, such as automotive assemblies, construction projects, and heavy equipment, where maintaining joint integrity is crucial. The versatility and strength of Carbon Steel Flange Bolt make it a preferred choice for professionals seeking reliability and ease of installation.

Key Specifications of Carbon Steel Flange Bolt:

  • Material: High-strength carbon steel
  • Standards: ASTM A307, Grade A or equivalent
  • Finish Options: Plain, zinc-plated, or hot-dip galvanized
  • Thread Type: Coarse or fine threads available
  • Temperature Range: -20°F to 400°F (-29°C to 204°C)

Detailed Product Parameters:

Size (Diameter x Length) Flange Diameter Torque Capacity (lb-ft) Recommended Applications
1/4" x 1" 0.625" 8-10 Light machinery, automotive parts
3/8" x 1.5" 0.938" 25-30 Piping systems, structural brackets
1/2" x 2" 1.250" 50-60 Heavy equipment, industrial frames
5/8" x 2.5" 1.562" 85-100 High-stress connections, construction

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