Standard: ASME B 18.9 - 2012
Available sizes: 1/2 to 7/16 (4 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 10 | 1.184 | 0.390 | 0.782 | 0.729 | 0.440 | 0.390 | 1.277 | 0.375 |
| 3/8 | 13 | 0.814 | 0.282 | 0.500 | 0.483 | 0.328 | 0.286 | 0.892 | 0.267 |
| 5/16 |
| 16 |
| 0.603 |
| 0.202 |
| 0.375 |
| 0.360 |
| 0.239 |
| 0.208 |
| 0.661 |
| 0.187 |
| 7/16 | 11 | 1.028 | 0.363 | 0.657 | 0.606 | 0.414 | 0.364 | 1.121 | 0.348 |
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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