Standard: NF E 25
Available sizes: Φ3 to Φ8 (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| Φ3 | 4.48 | 0.80 | 0.88 | 4.30 | 16 | 1.171 | 15.57 | 0.72 |
| Φ4 | 6.62 | 1.20 | 1.32 | 6.40 | 24 | 3.95 | 23.48 | 1.08 |
| Φ5 | 8.62 | 1.50 | 1.65 | 8.40 | 30 | 7.67 | 29.48 | 1.35 |
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.
| Φ6 | 13.27 | 2.50 | 2.75 | 13.00 | 40 | 22 | 39.38 | 2.25 |
| Φ7 | 17.27 | 3.0 | 3.30 | 17.00 | 50 | 40.8 | 49.38 | 2.70 |
| Φ8 | 21.33 | 3.00 | 3.30 | 21.00 | 60 | 58.4 | 59.26 | 2.70 |
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