Standard: DIN 6791 - 1993
Available sizes: (3.5) to 3 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (3.5) | 10.2 | 10.5 | 4.25 | 9.4 | 7.6 | 9.8 | 20 | 4.4 | 4.55 | 18.7 | 7.82 |
| 1.6 | 2.1 | 3 | 0.775 | 1.87 | 1.2 | 1.9 | 4 |
| 0.9 |
| 1.025 |
| 3.7 |
| 1.34 |
| 2 | 3.1 | 3.5 | 1.175 | 2.87 | 1.9 | 2.9 | 6 | 1.3 | 1.425 | 5.7 | 2.04 |
| 2.5 | 4.1 | 4.5 | 1.675 | 3.87 | 2.7 | 3.9 | 8 | 1.8 | 1.925 | 7.42 | 2.84 |
| 3 | 6.15 | 7 | 2.475 | 5.82 | 4.2 | 5.85 | 12 | 2.6 | 2.725 | 11.3 | 4.38 |
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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