Standard: DIN 981
Available sizes: M10 to M35 (8 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 1 | 0.007 | 1 | 3.82 | 3 | 22 | 21.67 | 2.875 | 2 | 4 | 3.125 |
| M12 | 1 | 0.013 | 1 | 4.82 | 4 | 28 | 27.67 | 3.85 | 2 | 5 | 4.15 |
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.
| M15 |
| 1.5 |
| 0.025 |
| 1 |
| 6.78 |
| 5 |
| 38 |
| 37.61 |
| 4.85 |
| 2 |
| 7 |
| 5.15 |
| M17 | 1.5 | 0.053 | 1 | 7.78 | 5 | 52 | 51.54 | 4.85 | 2 | 8 | 5.15 |
| M20 | 1.5 | 0.119 | 1.5 | 9.78 | 6 | 65 | 64.54 | 5.85 | 2.5 | 10 | 6.15 |
| M25 | 2 | 0.158 | 2 | 10.73 | 7 | 75 | 74.54 | 6.82 | 3 | 11 | 7.18 |
| M30 | 2 | 0.203 | 2 | 11.73 | 7 | 85 | 84.46 | 6.82 | 3 | 12 | 7.18 |
| M35 | 2 | 0.287 | 2.3 | 12.73 | 8 | 98 | 97.46 | 7.82 | 3.5 | 13 | 8.18 |
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