Standard: CNS 155 - 1994
Available sizes: (14) to 8 (8 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (14) | 26 | 6.7 | 6 | 6 | 6.7 | 26.8 | 68 | 72 | 70.1 | 66.1 | 5.3 |
| (18) | 39 | 8.7 | 8 | — | — | 40 | — |
| 110 |
| 107.8 |
| — |
| — |
| 10 | 18 | 5 | 4.5 | 3.2 | 3.6 | 18.7 | 45 | 52 | 50.1 | 43.4 | 2.8 |
| 12 | 22 | 6.7 | 6 | 4.5 | 5 | 22.8 | 56 | 62 | 60.1 | 54.1 | 4 |
| 16 | 33 | 6.7 | 6 | — | — | 34 | — | 90 | 87.8 | — | — |
| 20 | 42 | 8.7 | 8 | — | — | 43 | — | 115 | 112.8 | — | — |
| 6 | 9 | 2.6 | 2.3 | 1.6 | 1.8 | 9.6 | 23 | 26 | 24.7 | 21.7 | 1.4 |
| 8 | 14 | 3.6 | 3.2 | 2.3 | 2.6 | 14.7 | 35 | 40 | 38.4 | 33.4 | 2 |
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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