Standard: UNI 5914 - 1966
Available sizes: M3 to M6 (4 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| M3 | M4 | / | / | 4 | 3.88 | 8.9 | 14 | 8 |
| M4 | M6 | / | / | 6 | 5.88 | 13.1 | 18 | 12 |
| M5 | M8 | / | / | 8 |
| 7.85 |
| 17.1 |
| 22 |
| 16 |
| M6 | M12 | 36 | / | 12 | 11.82 | 25.3 | 30 | 24 |
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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