Standard: CNS 9681 - 1988
Available sizes: M1.2 to M2.3 (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M1.2 | 2 | 0.45 | 0.35 | 0.5 | 0.7 | 1.9 | 2.05 | 0.4 | 0.4 | 0.6 | 0.32 |
| M1.4 | 2.5 | 0.55 | 0.45 | 0.6 | 0.8 | 2.4 | 2.55 |
| 0.4 |
| 0.5 |
| 0.7 |
| 0.32 |
| M1.6 | 3.3 | 0.68 | 0.52 | 0.75 | 1.05 | 3.1 | 3.35 | 0.5 | 0.6 | 0.9 | 0.4 |
| M1.7 | 3.8 | 0.68 | 0.52 | 0.85 | 1.15 | 3.6 | 3.85 | 0.7 | 0.6 | 1 | 0.6 |
| M2 | 1.8 | 0.55 | 0.45 | 0.65 | 0.75 | 1.7 | 1.85 | 0.4 | 0.5 | 0.7 | 0.32 |
| M2.2 | 2.3 | 0.65 | 0.55 | 0.75 | 0.85 | 2.2 | 2.35 | 0.4 | 0.6 | 0.8 | 0.32 |
| M2.3 | 3 | 0.78 | 0.62 | 0.92 | 1.08 | 2.8 | 3.05 | 0.5 | 0.7 | 1 | 0.4 |
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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