Standard: HG /T 20614 - 2009
Available sizes: (M10) to M16 (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal |
|---|---|---|---|---|---|---|
| (M10) | 1.5 | 17.73 | 20.03 | 10.8 | 10.37 | 18 |
| (M12) | 1.5 | 23.67 | 26.75 | 14.8 | 14.1 | 24 |
| (M14) | 1.5 | 33 | 37.29 | 19.4 | 18.1 | 34 |
| M10 | 1.25 | 15.73 | 17.77 |
| 8.4 |
| 8.04 |
| 16 |
| M12 | 1.5 | 29.16 | 32.95 | 18 | 16.9 | 30 |
| M16 | 2 | 35 | 39.55 | 21.5 | 20.2 | 36 |
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.