Standard: DIN 7969 - 1989
Available sizes: M10 to M16 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 1.75 | 3.25 | 3 | 21 | 20.48 | 80° | 75° | 6.71 | 7.29 | 16 | 7 |
| M12 | 2.5 | 5.3 | 5 | 32 | 31.38 | 65° | 60° |
| 11.15 |
| 11.85 |
| 25 |
| 11.5 |
| M16 | 3 | 5.3 | 5 | 38 | 37.38 | 65° | 60° | 12.65 | 13.35 | 29 | 13 |
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.