Standard: JIS B 1214
Available sizes: Φ10 to Φ16 (5 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| Φ10 | 12.6 | 0.6 | 8.6 | 8 | 12 | 19.5 | 12.3 | 11.7 | 18.75 | 12 |
| Φ12 | 14.6 | 0.7 | 10.6 | 10 | 14 | 22.55 | 14.3 | 13.7 | 21.7 | 14 |
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.
| Φ13 | 18.8 | 0.9 | 13.3 | 12.5 | 18 | 29.55 | 18.3 | 17.7 | 28.7 | 18 |
| Φ14 | 20.8 | 1 | 14.8 | 14 | 20 | 32.6 | 20.35 | 19.65 | 31.65 | 20 |
| Φ16 | 22.8 | 1.1 | 16.3 | 15.5 | 22 | 35.6 | 22.35 | 21.65 | 34.65 | 22 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.