Hexagon Bolts Differences: US vs. Metric

The world of fasteners is vast, but two heavyweights come to the forefront – the ANSI hexagonal bolt and the metric bolt.

• Hexagonal bolts are threaded fasteners with a six-sided head.

ANSI hexagonal bolts

• Features: ANSI hexagonal bolts have imperial sizes and threads per inch (TPI) pitches.
• Applications: They are commonly used in the US construction, automotive, and machinery industries.
• Advantages: ANSI hexagonal bolts have a corrosion-resistant surface, high tensile strength, and are in ample supply in the US market.

Metric hexagonal bolts

• Features: Metric hexagonal bolts are measured in millimeters, and the pitch is measured in threads per millimeter (TPM).
• Applications: These bolts are widely used around the world, especially in European and Asian industries.
• Advantages: They offer higher precision, better compatibility with metric components, and a wider range of material options.

Which one dominates?

• Availability: ANSI hexagonal bolts are widely available in the US market, while metric hexagonal bolts are popular around the world. – Compatibility
  : The choice between US and metric hexagonal bolts depends on the application and compatibility with existing components.
• Standardization: Metric hexagonal bolts are more standardized due to their worldwide use and compliance with ISO standards.
  Summary:
  In the world of hexagonal bolts (US and metric), both competitors have unique qualities and serve different purposes. The dominance of US hexagonal bolts in the US market and the global popularity of metric hexagonal bolts clearly demonstrate their advantages. When choosing between these bolt types, consider factors such as availability, compatibility, standardization and individual requirements. Understanding the characteristics and differences between US and metric hexagonal bolts will ensure the best fastening solution and pave the way for successful mechanical work.