Standard: DIN 71555 - 2003
Available sizes: 1 to 4 (4 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 35.2 | 35 | 10 | 8.4 | 37.2 | 20 | 30.5 | 31.5 | 2 | 8 |
| 2 | 45.5 | 45 | 16 | 8.4 | 48.5 | 25 | 36.5 | 38 | 3 |
| 14 |
| 3 | 55.5 | 55 | 16 | 8.4 | 58.5 | 25 | 41.5 | 43 | 3 | 14 |
| 4 | 65.5 | 65 | 16 | 8.4 | 68.5 | 25 | 46.5 | 48 | 3 | 14 |
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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