Standard: DIN 7964
Available sizes: M2.5 to M8 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M2.5 | 0.5 | 2.12 | 1.88 | 12.7 | 2.3 | 3.8 | 12 | 0.1 | 2 | 4.5 | 2.1 |
| M3 | 0.8 | 3.65 | 3.35 | 17.3 | 3.9 | 6.25 | 16 |
| 0.2 |
| 3.5 |
| 7.55 |
| 3.7 |
| M4 | 1.25 | 5.45 | 5.15 | 23.2 | 6.2 | 10 | 22 | 0.4 | 5.3 | 11.2 | 6 |
| M5 | 1.75 | 7.68 | 7.32 | 32.5 | 9.2 | 15 | 30 | 0.6 | 7.6 | 17.5 | 9 |
| M6 | 2.5 | 12.72 | 12.28 | 49.5 | 16.2 | 25 | 46 | 0.8 | 12.5 | 28.5 | 16 |
| M8 | 3.5 | / | / | 71 | 24.2 | 38 | 66 | 1 | 18.7 | 43 | 24 |
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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