Standard: DIN 7990 - 1989
Available sizes: M12 to M22 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M12 | 2.5 | 29.16 | 30 | 20.84 | 32.95 | 23.5 | 20 | 12.1 | 13.9 | 19.16 | 13 |
| M16 | 2.5 | 31 | 32 | 22.84 | 35.03 | 25.5 | 22 |
| 13.1 |
| 14.9 |
| 21.16 |
| 14 |
| M20 | 3 | 40 | 41 | 27.84 | 45.2 | 29 | 27 | 16.1 | 17.9 | 26.16 | 17 |
| M22 | 3.5 | 45 | 46 | 30.84 | 50.85 | 30.5 | 30 | 17.95 | 20.05 | 29.16 | 19 |
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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