Standard: CNS 4254 - 1978
Available sizes: 10 to 8 (7 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 16.11 | 3 | 1 | 5 | 16 | 32 | 4.855 | 13.5 | 31.84 | 4.93 |
| 12 | 20.13 | 4 | 1 | 6 | 20 | 36 | 5.855 | 17.5 | 35.84 | 5.93 |
| 14 | 24.13 | 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.
| 1 |
| 6 |
| 24 |
| 42 |
| 5.855 |
| 21.6 |
| 41.84 |
| 5.93 |
| 16 | 28.13 | 5 | 1 | 7 | 28 | 50 | 6.83 | 25.5 | 49.84 | 6.92 |
| 18 | 30.13 | 5 | 1.2 | 7 | 30 | 50 | 6.83 | 27.5 | 49.84 | 6.92 |
| 6 | 8.09 | 2.5 | 0.8 | 3 | 8 | 20 | 2.88 | 5.9 | 19.87 | 2.94 |
| 8 | 12.11 | 3 | 0.8 | 5 | 12 | 28 | 4.855 | 9.3 | 27.87 | 4.93 |
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