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 | 4.90 | 7.11 | 0.280 | 2.0 | 0.08 | 0.193 |
| 1/4 | 14 | 0.10 | 2.5 | 14.43 | 14.48 | 0.570 | 4.6 | 0.18 | 0.568 |
| 1/8 | 18 |
| 0.08 |
| 2.0 |
| 8.08 |
| 10.80 |
| 0.425 |
| 3.3 |
| 0.13 |
| 0.318 |
| 3/8 | 11-1/2 | 0.11 | 2.8 | 16.00 | 18.03 | 0.710 | 5.1 | 0.20 | 0.630 |
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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