Standard: DIN 34828 - 2005
Available sizes: M10 to M8 (6 sizes)
| Size | P | k_max | s_max | s_min | k_nominal |
|---|---|---|---|---|---|
| M10 | 2.5 | 215.4 | 125 | 120 | 224.6 |
| M12 | 3.5 | 254.8 | 167 | 160 | 265.2 |
| M16 | 4.5 | 344.3 | 209 | 200 | 355.7 |
| M20 | 5.5 | 374.3 | 241 | 230 | 385.7 |
| M6 | 1.25 | 118 | 67.5 | 65 | 122 |
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.
| M8 | 1.75 | 148 | 78.5 | 75 | 152 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.