Standard: DIN 2510
Available sizes: M12 to M30 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M12 | 2 | 17 | 27.5 | 6 | 21.1 | 20.5 | 26 | 40 | 34.5 | 18.5 | 10 |
| M16 | 3 | 25 | 37.5 | 10 | 30.14 | 27.5 | 35 |
| 56 |
| 45.5 |
| 26.5 |
| 14 |
| M20 | 3.5 | 31 | 45 | 10 | 39.98 | 35 | 45 | 68 | 55 | 33.5 | 17 |
| M24 | 4 | 37 | 52.5 | 10 | 45.63 | 40.5 | 53.5 | 82 | 64.5 | 39.5 | 22 |
| M27 | 4.5 | 43 | 60 | 10 | 55.8 | 46 | 63.5 | 92 | 72 | 45.5 | 23 |
| M30 | 4.5 | 46 | 62.5 | 10 | 55.8 | 48.5 | 68.5 | 98 | 74.5 | 49.5 | 26 |
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.