Standard: ASME B 18.6
Available sizes: 0# to 3# (4 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| 0# | 0.0730 | 0.051 | 0.084 | 0.138 | 0.122 | 0.022 | 0.061 | 0.040 |
| 1# | 0.0990 | 0.067 | 0.116 | 0.187 | 0.169 | 0.027 | 0.078 | 0.061 |
| 2# | 0.1250 | 0.083 | 0.147 |
| 0.236 |
| 0.217 |
| 0.032 |
| 0.095 |
| 0.080 |
| 3# | 0.1510 | 0.099 | 0.178 | 0.285 | 0.264 | 0.036 | 0.111 | 0.100 |
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.