Standard: ASME B 18.2
Available sizes: 1/2 to 7/8 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 0.7500 | 0.524 | 1.383 | 0.768 | 0.729 | 10 | 16 | 1.212 | 1.443 | 1.250 |
| 3/4 | 1.2500 | 0.876 | 2.209 | 1.277 | 1.223 | 7 | 12 | 1.938 | 2.309 | 2.000 |
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.
| 3/8 | 0.5000 | 0.364 | 0.969 | 0.515 | 0.482 | 13 | 20 | 0.850 | 1.010 | 0.875 |
| 5/8 | 1.0000 | 0.700 | 1.796 | 1.022 | 0.976 | 8 | 12 | 1.575 | 1.876 | 1.625 |
| 7/8 | 1.3750 | 0.940 | 2.416 | 1.404 | 1.345 | 6 | 12 | 2.119 | 2.526 | 2.188 |
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