Standard: MS 3215
Available sizes: 0.094 to 0.2500 (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| 0.094 | 0.093 | 0.015 | 0.017 | 0.094 | 0.090 | 0.270 | 0.089 | 0.013 |
| 0.1250 | 0.143 | 0.025 | 0.027 | 0.146 | 0.140 | 0.375 | 0.116 | 0.023 |
| 0.156 | 0.204 | 0.025 | 0.027 |
| 0.207 |
| 0.201 |
| 0.516 |
| 0.156 |
| 0.023 |
| 0.188 | 0.292 | 0.035 | 0.037 | 0.296 | 0.288 | 0.660 | 0.184 | 0.033 |
| 0.219 | 0.385 | 0.042 | 0.044 | 0.389 | 0.381 | 0.810 | 0.212 | 0.04 |
| 0.2500 | 0.430 | 0.042 | 0.044 | 0.434 | 0.426 | 0.870 | 0.220 | 0.04 |
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.