Standard: YJT 7031
Available sizes: 0.125 to 0.281 (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.125 | 0.159 | 0.018 | 0.15 | 0.017 | 0.013 | 0.156 | 0.205 | 0.135 | 0.12 | 0.015 | 0.22 |
| 0.156 | 0.223 | 0.029 | 0.195 | 0.027 | 0.023 | 0.219 |
| 0.275 |
| 0.193 |
| 0.191 |
| 0.025 |
| 0.29 |
| 0.188 | 0.254 | 0.029 | 0.222 | 0.027 | 0.023 | 0.25 | 0.311 | 0.22 | 0.218 | 0.025 | 0.33 |
| 0.219 | 0.316 | 0.029 | 0.278 | 0.027 | 0.023 | 0.312 | 0.376 | 0.276 | 0.274 | 0.025 | 0.39 |
| 0.236 | 0.41 | 0.029 | 0.366 | 0.027 | 0.023 | 0.406 | 0.486 | 0.364 | 0.362 | 0.025 | 0.5 |
| 0.25 | 0.506 | 0.039 | 0.453 | 0.037 | 0.033 | 0.5 | 0.581 | 0.45 | 0.447 | 0.035 | 0.6 |
| 0.281 | 0.631 | 0.039 | 0.566 | 0.037 | 0.033 | 0.625 | 0.715 | 0.563 | 0.56 | 0.035 | 0.74 |
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.
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