Standard: CNS 9074 - 1998
Available sizes: 10 to 16 (7 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 10.2 | 18 | 1.05 | 0.95 | 10.35 | 10.05 | 3.1 | 1.2 | 1 | 1.8 |
| 11 | 12 | 20 | 1.05 | 0.95 | 12.18 | 11.82 | 3.3 | 1.5 | 1 | 1.8 |
| 12 | 13.8 | 22 |
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.
| 1.05 |
| 0.95 |
| 13.98 |
| 13.62 |
| 3.5 |
| 1.7 |
| 1 |
| 2.1 |
| 13 | 15.7 | 24 | 1.05 | 0.95 | 15.88 | 15.52 | 3.7 | 1.7 | 1 | 2.2 |
| 14 | 17.5 | 26 | 1.26 | 1.14 | 17.68 | 17.32 | 3.8 | 2 | 1.2 | 2.7 |
| 15 | 19.5 | 29 | 1.26 | 1.14 | 19.7 | 19.3 | 4 | 2 | 1.2 | 2.7 |
| 16 | 22.5 | 32 | 1.26 | 1.14 | 22.7 | 22.3 | 4.2 | 2 | 1.2 | 3.1 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.