Standard: SAE J 531
Available sizes: 1/16 to 3/8 (4 sizes)
| Size | P | e | r | k_min | s_max | s_min | ds_max | ds_min | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 1/16 | 27 | 0.06 | 1.5 | 5 | 7.87 | 0.310 | 5.31 | 0.209 | 0.197 |
| 1/4 | 14 | 0.09 | 2.3 | 13.03 | 16.26 | 0.640 | 14.05 | 0.553 | 0.513 |
| 1/8 | 18 |
| 0.06 |
| 1.5 |
| 8.23 |
| 12.06 |
| 0.475 |
| 8.76 |
| 0.345 |
| 0.324 |
| 3/8 | 11-1/2 | 0.12 | 3 | 13.03 | 20.07 | 0.790 | 14.05 | 0.553 | 0.513 |
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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