Standard: NF E 25
Available sizes: Φ10 to Φ8 (7 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| Φ10 | 19 | 19.78 | 5 | 5.15 | 19.52 | 36 | 20.2 | 20.62 | 35 | 4.85 |
| Φ12 | 23 | 23.98 | 6 | 6.15 | 23.52 | 45 | 24.4 | 24.82 | 44 |
| 5.85 |
| Φ14 | 28 | 29.9 | 7 | 7.18 | 28.52 | 55 | 30.4 | 30.9 | 53.8 | 6.82 |
| Φ16 | 31 | 32.9 | 7 | 7.18 | 31.62 | 60 | 33.4 | 33.9 | 58.8 | 6.82 |
| Φ6 | 7.4 | / | 2 | 2.12 | 7.62 | 14 | / | / | 13.57 | 1.88 |
| Φ7 | 10.5 | 10.85 | 3 | 3.12 | 10.77 | 20 | 11.2 | 11.55 | 19.48 | 2.88 |
| Φ8 | 15 | 15.35 | 4 | 4.15 | 15.27 | 30 | 15.7 | 16.05 | 29.48 | 3.85 |
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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