Standard: UNI 5911 - 1993
Available sizes: M10 to M8 (7 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| M10 | 3 | 60 | 73 | 24 | 23.67 | 31.2 | 54 | 32.8 |
| M3 | 0.7 | / | / | 4 | 3.82 | 5.625 | 14 | 6.375 |
| M4 | 1 | / | / | 6 |
| 5.82 |
| 8.55 |
| 18 |
| 9.45 |
| M5 | 1.25 | / | / | 8 | 7.78 | 11.45 | 22 | 12.55 |
| M6 | 1.75 | 36 | / | 12 | 11.73 | 17.45 | 30 | 18.55 |
| M7 | 2 | 44 | / | 16 | 15.73 | 21.35 | 38 | 22.65 |
| M8 | 2.5 | 52 | / | 20 | 19.67 | 27.35 | 46 | 28.65 |
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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