Standard: DIN 661 - 1993
Available sizes: (Φ1.4) to Φ3 (7 sizes)
| Size | P | k_max | s_max | s_min | k_nominal |
|---|---|---|---|---|---|
| (Φ1.4) | 2.6 | 1.2 | 2.4 | 4.4 | 4.1 |
| Φ1 | 1.25 | 0.6 | 1.15 | 2.1 | 1.85 |
| Φ1.2 | 1.65 | 0.8 | 1.55 | 2.8 | 2.55 |
| Φ1.6 | 3.6 | 1.8 | 3.4 | 6.3 | 5.72 |
| Φ2 |
| 5.15 |
| 2.5 |
| 4.85 |
| 8.8 |
| 8.22 |
| Φ2.5 | 7.15 | 3.5 | 6.85 | 12.2 | 11.5 |
| Φ3 | 8.15 | 4 | 7.85 | 14 | 13.3 |
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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