Standard: DIN 34819 - 2008
Available sizes: ST2.9 to ST4.2 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ST2.9 | 1.3 | 3.3 | 15 | 2.35 | 7.29 | 9 | 8.42 | 0.9 | 0.7 | 2.6 | 6.71 |
| ST3.5 | 1.6 | 4.5 | 25 | 3.25 | 9.29 | 11.5 | 10.8 |
| 1.35 |
| 1.05 |
| 3.55 |
| 8.71 |
| ST4.2 | 1.8 | 5.6 | 30 | 4.25 | 12.35 | 14.5 | 13.8 | 1.8 | 1.4 | 4.55 | 11.65 |
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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