Standard: DIN 3770 - 1986
Available sizes: (3) to 3.15 (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (3) | 4 | / | 0.0831 | 2.08 | 1.92 | 4.16 | 3.84 | / | / | 2 | / |
| (3.35) | 5 | / | 0.097 | 2.08 | 1.92 | 5.16 | 4.84 |
| / |
| / |
| 2 |
| / |
| 2 | 2.24 | / | 0.034 | 1.67 | 1.53 | 2.34 | 2.14 | / | / | 1.6 | / |
| 2.24 | 2.8 | / | 0.039 | 1.67 | 1.53 | 2.9 | 2.7 | / | / | 1.6 | / |
| 2.5 | 3.15 | / | 0.0421 | 1.67 | 1.53 | 3.31 | 2.99 | / | / | 1.6 | / |
| 2.8 | 3.55 | / | 0.0457 | 1.67 | 1.53 | 3.71 | 3.39 | / | / | 1.6 | / |
| 3.15 | 4.5 | / | 0.0901 | 2.08 | 1.92 | 4.66 | 4.34 | / | / | 2 | / |
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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