Standard: ISO 8676 - 2022
Available sizes: (M10) to M8 (7 sizes)
| Standard Body | Standard Number |
|---|---|
| EN | EN 28676 |
| GB | GB /T 5786 |
| DIN | DIN EN ISO 8676 |
| ISO | ISO 8676 |
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M10) | 1.5 |
| 7.5 |
| 19.85 |
| 0.15 |
| 13.7 |
| 4.5 |
| 1.5 |
| 16.47 |
| 20.03 |
| 0.6 |
| 16.63 |
| (M12) | 2 | 12.5 | 32.95 | 0.2 | 22.4 | 6 | 2 | 27.7 | 33.53 | 0.8 | 28.19 |
| (M14) | 2 | 14 | 37.29 | 0.2 | 24.4 | 6 | 2 | 31.35 | 37.72 | 0.8 | 31.71 |
| M10 | 1.5 | 8.8 | 22.78 | 0.15 | 15.7 | 4.5 | 1.5 | 19.15 | 23.36 | 0.6 | 19.64 |
| M12 | 2 | 11.5 | 29.56 | 0.2 | 20.2 | 6 | 2 | 24.85 | 30.14 | 0.8 | 25.34 |
| M16 | 1.5 | 14 | 37.29 | 0.2 | 24.4 | 4.5 | 1.5 | 31.35 | 37.72 | 0.8 | 31.71 |
| M8 | 1.25 | 6.4 | 17.59 | 0.15 | 11.2 | 3.75 | 1.25 | 14.47 | 17.77 | 0.6 | 14.63 |
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.
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.