Standard: CNS 4470 - 1983
Available sizes: (M7) to M8 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| (M7) | 1.5 | 4 | 17 | 1.25 | 1 | 18.9 | 8 | 2.8 |
| M10 | 2.5 | 9 | 27 | 2 | 1.5 | 30.14 | 15 | 4.5 |
| M12 | 2.5 | 10 | 32 | 2 | 1.5 | 35.72 | 18 | 5.5 |
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.
| M6 |
| 1 |
| 3 |
| 11 |
| — |
| — |
| 12.12 |
| 5.5 |
| 2 |
| M8 | 2 | 6 | 22 | 1.5 | — | 24.49 | 11 | 3.5 |
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