Standard: SAE J 489
Available sizes: 2# to 8# (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| 2# | 0.099 | 0.215 | 0.019 | 0.109 | 0.102 | 0.232 | 0.012 |
| 3# | 0.125 | 0.245 | 0.021 | 0.136 | 0.129 | 0.280 | 0.017 |
| 4# | 0.164 | 0.325 | 0.023 | 0.176 | 0.168 | 0.340 | 0.018 |
| 5# | 0.216 | 0.394 | 0.025 |
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.
| 0.231 |
| 0.221 |
| 0.410 |
| 0.020 |
| 6# | 0.312 | 0.594 | 0.034 | 0.332 | 0.320 | 0.610 | 0.028 |
| 8# | 0.375 | 0.670 | 0.040 | 0.398 | 0.384 | 0.692 | 0.032 |
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