Standard: NF E 22
Available sizes: 20 to 32 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 20 | 22.5 | 7.28 | 7.5 | 36 | 36.125 | 22.71 | 19 | 7.5 | 7.28 | 19.33 | 35.875 |
| 22 | 28.5 | 7.28 | 7.5 | 42 | 42.125 | 28.71 | 25 | 7.5 |
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.
| 7.28 |
| 25.33 |
| 41.875 |
| 25 | 32.5 | 9.28 | 9.5 | 47 | 47.125 | 32.75 | 29 | 9.5 | 9.28 | 29.33 | 46.875 |
| 28 | 38.5 | 9.28 | 9.5 | 53 | 53.15 | 38.75 | 34 | 9.5 | 9.28 | 34.39 | 52.85 |
| 30 | 42.5 | 9.28 | 9.5 | 59 | 59.15 | 42.75 | 38 | 9.5 | 9.28 | 38.39 | 58.85 |
| 32 | 45.5 | 9.28 | 9.5 | 62 | 62.15 | 45.75 | 41 | 9.5 | 9.28 | 41.39 | 61.85 |
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