Standard: CNS 161 - 1994
Available sizes: 2 to 3.5 (6 sizes)
| Size | P | e | r | k_min | s_max | s_min | ds_max | ds_min | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 2 | 2.4 | 0.6 | 1.1 | 1.2 | 2.7 | 4.9 | 1 | 0.9 | 1.4 |
| 2.3 | 2.7 | 0.6 | 1.1 | 1.2 | 3 | 5.2 | 1 | 0.9 | 1.4 |
| 2.5 | 3.6 | 0.8 | 1.4 | 1.6 | 3.9 | 6.7 |
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.
| 1.3 |
| 1.2 |
| 1.9 |
| 2.6 | 5.1 | 1.2 | 1.9 | 2.4 | 5.4 | 9.2 | 1.8 | 1.7 | 2.8 |
| 3 | 7.1 | 1.6 | 2.65 | 3.2 | 7.5 | 12.8 | 2.5 | 2.35 | 3.8 |
| 3.5 | 10.2 | 2.2 | 3.7 | 4.4 | 10.7 | 18.1 | 3.5 | 3.3 | 5.2 |
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