Standard: CNS 4488 - 1981
Available sizes: (M2.3) to M5 (8 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M2.3) | 6 | 1.6 | 0.5 | 1.6 | 8 | 5 | 16 | 2.5 | 1/2 g | 1.2 | 4 |
| (M2.6) | 10 | 2.5 | 0.5 | 2.5 | 12 | 8 | 25 | 4 | 1/2 g | 2 | 6 |
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.
| (M3.5) |
| 23 |
| 6 |
| 1.2 |
| 6 |
| 32 |
| 19 |
| 64 |
| 10 |
| 1 |
| 5 |
| 14 |
| M2 | 5 | 1.2 | 0.5 | 1.2 | 6 | 4 | 12 | 2 | 1/2 g | 1 | 3 |
| M2.5 | 8 | 2 | 0.5 | 2 | 10 | 6 | 20 | 3 | 1/2 g | 1.6 | 5 |
| M3 | 16 | 4 | 1 | 4 | 20 | 12 | 40 | 6 | 1/2 g | 3 | 10 |
| M4 | 36 | 9 | 2 | 9 | 45 | 28 | 90 | 14 | 1.6 | 7 | 20 |
| M5 | 45 | 11 | 3 | 11 | 56 | 36 | 112 | 18 | 2.5 | 9 | 24 |
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