Thread gauge M20x2.5 6H Go/Nogo

The DIN/ISO standard metric thread Go/No-Go precision gauge is designed to ensure that internal threads are accurately manufactured: diameter, thread pitch, and tolerances meet specifications before joining parts.
Technical specifications & features
- Thread size: M20 × 2.5 mm, metric thread profile (standard coarse thread)
- Tolerance class: 6H - standard ISO/DIN for metric threads
- Go/No-Go function: the gauge includes both "GO" and "NO-GO" heads - GO ensures that the thread is at least the minimum size approved, NO-GO ensures that the thread does not exceed the maximum material condition limit.
- Standard: ISO 1502