Standard: CNS 4377 - 1983
Available sizes: (M1.8) to M3 (6 sizes)
| Size | P | s_max | s_min | k_nominal |
|---|---|---|---|---|
| (M1.8) | 6.3 | 1.6 | 5 | 0.266 |
| (M3.5) | 21.8 | 5 | 17 | 8.8 |
| M1.6 | 4.4 | 1.1 | 3.5 | 0.08 |
| M2 | 7.6 | 2 | 6 | 0.442 |
| M2.5 | 10.2 | 2.7 | 8 | 1.06 |
| M3 | 16.5 | 4 | 13 | 4.01 |
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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