Standard: NF E 27
Available sizes: 12 to 20 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 12 | 2 | 2.7 | 9 | 23.16 | 25.4 | 22 | 21.16 | 22.71 | 24.86 | 24 | 27.7 |
| 14 | 2.5 | 3.7 | 12 | 29.16 | 31.2 | 27 | 26.16 | 28.08 | 31.3 | 30 | 34.64 |
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.
| 16 | 2.5 | 3.7 | 14 | 35 | 36.37 | 32 | 31 | 33.28 | 35.57 | 36 | 41 |
| 18 | 3 | 4.7 | 17 | 45 | 47.4 | 41 | 40 | 42.94 | 48.31 | 46 | 53.1 |
| 20 | 3.5 | 4.7 | 19 | 49 | 53.1 | 46 | 45 | 48.31 | 52.6 | 50 | 57.7 |
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