Standard: DIN 7980 - 1987
Available sizes: Φ3 to Φ6 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Φ3 | 3.6 | M3.5 | 2.36 | 0.9 | 1 | 3.9 | 1 | 0.9 | 2 | 1.1 | 1.1 |
| Φ3.5 | 5.1 | M5 | 3.78 | 1.5 | 1.6 | 5.4 | 1.6 |
| 1.5 |
| 3.2 |
| 1.7 |
| 1.7 |
| Φ4 | 8.1 | M8 | 4.72 | 1.9 | 2 | 8.5 | 2 | 1.9 | 4 | 2.1 | 2.1 |
| Φ5 | 12.2 | M12 | 5.9 | 2.35 | 2.5 | 12.7 | 2.5 | 2.35 | 5 | 2.65 | 2.65 |
| Φ6 | 16.2 | M16 | 8.25 | 3.3 | 3.5 | 17 | 3.5 | 3.3 | 7 | 3.7 | 3.7 |
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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