Standard: UNI 1750
Available sizes: 10 to 8 (8 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| 10 | 25.29 | 38.5 | 4 | 25.16 | 39 | 39.5 | 1 |
| 12 | 28.29 | 41.5 | 4 | 28.16 | 42 | 42.5 | 1 |
| 3 | 4.215 | 7.8 | 0.5 | 4.14 | 8 | 8.2 | 0.2 |
| 4 | 6.215 | 11.7 | 1 |
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.
| 6.14 |
| 12 |
| 12.3 |
| 0.2 |
| 5 | 8.24 | 14.7 | 1.5 | 8.15 | 15 | 15.3 | 0.5 |
| 6 | 12.26 | 20.6 | 2.5 | 12.15 | 21 | 21.4 | 0.5 |
| 7 | 16.26 | 26.5 | 2.5 | 16.15 | 27 | 27.5 | 0.5 |
| 8 | 20.29 | 32.5 | 3 | 20.16 | 33 | 33.5 | 0.5 |
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