Standard: DIN 8140
Available sizes: (M3.5) to M6 (8 sizes)
| Size | P | k_max | k_min | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| (M3.5) | 1 | 5.3 | 14.3 | 7 | 8.9 | 7.3 | 17.5 | 8.65 |
| (M7) | — | 7.4 | 15.9 | 12 | 14.8 | 12.4 | 24 | 14.4 |
| M2 | 0.45 | 3.5 | 10.5 | 2.5 |
| 3.5 |
| 2.6 |
| 6.25 |
| 3.3 |
| M2.5 | 0.6 | 3.7 | 11.2 | 3.5 | 4.75 | 3.7 | 8.75 | 4.55 |
| M3 | 0.8 | 4.3 | 12.3 | 5 | 6.6 | 5.2 | 12.5 | 6.35 |
| M4 | — | 6.1 | 16.5 | 8 | 10.1 | 8.3 | 20 | 9.85 |
| M5 | — | 7.6 | 20.7 | 10 | 12.5 | 10.3 | 25 | 12.1 |
| M6 | 1.75 | 5.2 | 14.7 | 12 | 14.8 | 12.5 | 30 | 14.4 |
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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