Standard: SAE J 2655 - 2015
Available sizes: 1/4 to 8# (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4 | 0.625 | 0.609 | 0.594 | 1.499 | 1.462 | 0.64 | 0.62 | 0.132 | 0.086 | 1.469 | 0.109 |
| 10# | 0.375 | 0.359 | 0.344 | 0.905 | 0.868 | 0.39 | 0.37 | 0.104 | 0.064 | 0.875 | 0.083 |
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.
| 12# | 0.5 | 0.484 | 0.469 | 1.28 | 1.243 | 0.515 | 0.495 | 0.104 | 0.064 | 1.25 | 0.083 |
| 3/8 | 0.938 | 0.968 | 0.938 | 2.28 | 2.243 | 0.968 | 0.931 | 0.192 | 0.136 | 2.25 | 0.165 |
| 5/16 | 0.812 | 0.842 | 0.812 | 2.03 | 1.993 | 0.842 | 0.805 | 0.177 | 0.122 | 2 | 0.148 |
| 6# | — | 0.196 | 0.188 | — | — | — | — | — | — | — | — |
| 8# | — | 0.265 | 0.25 | — | — | — | — | — | — | — | — |
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