Standard: NF E 25
Available sizes: 1/4 to N°8 (4 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal |
|---|---|---|---|---|---|---|
| 1/4 | 0.4375 | 11 | 6 | 14 | 20 | 17 |
| 5/16 | 0.5625 | 15 | 8 | 12 | 18 | 22 |
| N°10 | 0.3125 | 8.8 | 4.8 | 18 | 24 | 13 |
| N°8 | 0.1900 | 6.3 | 3 |
| 24 |
| 32 |
| 9 |
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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