Standard: EN 1666 - 1997
Available sizes: M10 to M8 (3 sizes)
| Standard Body | Standard Number |
|---|---|
| EN | EN 1666 |
| GB | GB /T 6183.2 |
| DIN | DIN EN 1666 |
| ISO | ISO 12125 |
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 1.5 |
| 13.3 |
| 16.9 |
| 15.1 |
| 29.9 |
| / |
| 2.1 |
| 23.36 |
| 18.2 |
| 14 |
| 27.6 |
| M12 | 1.5 | 18.7 | 22.7 | 21.6 | 42.8 | / | 3 | 32.95 | 24.8 | 20 | 39.9 |
| M8 | 1 | 9.6 | 12.8 | 10.8 | 21.8 | 1.25 | 1.5 | 17.77 | 13.5 | 10 | 19.6 |
Standard corrosion protection for indoor and mild outdoor environments.
Salt spray: 96–200 hours | RoHS compliant (trivalent chromium)
High-performance coating for automotive, marine, and harsh environments.
Salt spray: 720–1500 hours | Recommended for grade 8.8+
Heavy-duty protection for structural and outdoor applications.
Salt spray: 500–1000 hours | Thread tolerance adjustment required
Note for high-strength fasteners (Grade 10.9, 12.9): Electroplating processes require hydrogen embrittlement relief baking (minimum 4 hours at 200°C within 4 hours of plating). Contact our engineering team for grade-specific plating recommendations.
Request detailed technical specifications, material certifications, and availability information for your application requirements. Our engineering team can provide product recommendations, custom specifications, and technical documentation.
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