Standard: DIN 89347 - 2008
Available sizes: Φ11 to Φ9 (4 sizes)
| Size | P | s_max | s_min | k_nominal |
|---|---|---|---|---|
| Φ11 | Φ27 | 1.5 | 3.64 | 30 |
| Φ13 | Φ33 | 1.5 | 5.54 | 36 |
| Φ8 | Φ16 | 1 | 1.15 | 18 |
| Φ9 | Φ22 | 1 | 1.29 | 24 |
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.