Standard: DIN 6331 - 1991
Available sizes: M10 to M8 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 2.5 | 30.42 | 30 | 37 | 36.61 | 6 | 6.15 | 21.6 | 33.53 | 5.85 | 20 |
| M12 | 3 | 40.5 | 40 | 50 | 49.61 | 7 | 7.18 | 29.1 |
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.
| 45.63 |
| 6.82 |
| 27 |
| M16 | 4 | 54.6 | 54 | 68 | 67.54 | 10 | 10.18 | 38.9 | 61.31 | 9.82 | 36 |
| M20 | 5 | 72.6 | 72 | 92 | 91.46 | 14 | 14.215 | 51.8 | 53.91 | 13.785 | 48 |
| M6 | 1.25 | 12.35 | 12 | 18 | 17.73 | 3.5 | 3.65 | 8.75 | 14.38 | 3.35 | 8 |
| M8 | 1.75 | 18.35 | 18 | 25 | 24.67 | 4 | 4.15 | 13 | 20.03 | 3.85 | 12 |
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