Standard: SAE J 531
Available sizes: 1/16 to 3/8 (4 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| 1/16 | 27 | 0.283 | 6.48 | 8.89 | 0.350 | 7.19 | 0.255 |
| 1/4 | 14 | 0.627 | 11.94 | 18.03 | 0.710 | 15.93 | 0.470 |
| 1/8 | 18 | 0.440 | 8.51 | 13.34 | 0.525 | 11.18 | 0.335 |
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 |
| 11-1/2 |
| 0.815 |
| 13.72 |
| 22.10 |
| 0.870 |
| 20.70 |
| 0.540 |
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