Standard: CNS 5404 - 1980
Available sizes: M10 to M8 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 25 | 17 | 5.5 | 19 | 19.2 | 5 | 42 | 30 | 29.85 | 36 | 24 |
| M4 | 6 | 4 | 1.4 | 3.7 | 3.9 | 2 | 10 |
| 8 |
| 7.9 |
| 9.5 |
| 5 |
| M5 | 10 | 6 | 2 | 6 | 6.2 | 2.3 | 15 | 11.75 | 11.65 | 14 | 8 |
| M6 | 14 | 9 | 2.8 | 9 | 9.2 | 3 | 22 | 16 | 15.9 | 19 | 12 |
| M8 | 21 | 14 | 4 | 16 | 16.2 | 4 | 35 | 25 | 24.85 | 30 | 20 |
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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