Standard: CNS 4472 - 1983
Available sizes: M10 to M8 (5 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 2.5 | 94.1 | 33.53 | 25 | 2 | 1.5 | 30 | 21 | 27 | 35 |
| M4 | 0.8 | 2.2 | 8.87 | 7 | / | / | 8 | 5.2 | 7.2 | 10 |
| M5 | 1.25 | 9.5 |
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.
| 14.38 |
| 12 |
| 1 |
| / |
| 13 |
| 9.5 |
| 11.7 |
| 15 |
| M6 | 1.75 | 25.5 | 21.1 | 16 | 1.5 | 1.25 | 19 | 13.5 | 17.1 | 25 |
| M8 | 2 | 48.1 | 26.75 | 20 | 1.5 | / | 24 | 17 | 21.6 | 30 |
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