Coarse Thread
Coarse threads are the standard, normalised thread types with a standardised pitch – e.g. metric coarse threads.
Comparison:
- Coarse threads have a larger pitch than fine threads for the same diameter.
- Widely used as they are easier to manufacture and compatible with many standard parts.
Practical example:
A standard machine screw M8 × 1.25 is a metric coarse thread – it fits many nuts and components.