Standard: DIN 1469 - 1978
Available sizes: Φ2 to Φ8 (7 sizes)
| Size | P | e | r | k_max | s_max | s_min | k_nominal |
|---|---|---|---|---|---|---|---|
| Φ2 | 2.5 | 1.84 | 1.9 | 0.3 | 2.475 | 2 | 1 |
| Φ2.5 | 4 | 3.125 | 3.2 | 0.5 | 3.925 | 2.5 | 1.5 |
| Φ3 | 6 | 4.925 | 5 | 0.8 | 5.925 | 3 | 2 |
| Φ4 | 10 |
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.
| 8.91 |
| 9 |
| 1.2 |
| 9.91 |
| 3.5 |
| 2.5 |
| Φ5 | 14 | 11.89 | 12 | 1.6 | 13.89 | 3.5 | 2.5 |
| Φ6 | 20 | 18.87 | 19 | 2.5 | 19.87 | 4 | 3 |
| Φ8 | 25 | 23.87 | 24 | 3 | 24.87 | 4 | 3 |
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