Standard: SAE J 891
Available sizes: 3.5 to 4.2 (2 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.5 | 31.8 | 0.024 | 0.74 | 0.25 | 1.27 | 1.25 | 14.27 | 0.05 | 0.61 | 0.562 | 0.01 |
| 4.2 | 35 | 0.028 | 0.99 | 1.14 | 2.16 | 1.38 | 17.48 | 0.085 |
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.
| 0.71 |
| 0.688 |
| 0.045 |
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