Standard: JASO F 116 - 2005
Available sizes: ST3 to ST5 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ST3 | T20 | 0.65 | 0.95 | 10 | 9.5 | 3.911 | 7 | 2.6 | 0.8 | 6.5 | 2.9 |
| ST4.0 | T30 | 1 | 1.4 | 14 | 13.4 | 5.575 | 10.5 |
| 3.9 |
| 1.2 |
| 9.8 |
| 4.3 |
| ST5 | T40 | 1.2 | 1.6 | 18 | 17.3 | 6.705 | 14 | 5.2 | 1.4 | 13.2 | 5.6 |
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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