Standard: UNI 8841
Available sizes: 1.6 to 3 (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| 1.6 | 2.14 | 2h | 0.3 | 2 | 4 | 3.7 | 6 |
| 1.8 | 2.54 | 2h | 0.4 | 2.4 | 5 | 4.7 | 6 |
| 2 | 3.38 | 2h | 0.4 | 3.2 | 6 | 5.7 | 6 |
| 2.2 |
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.
| 4.48 |
| 2h |
| 0.5 |
| 4.3 |
| 8 |
| 7.64 |
| 8 |
| 2.5 | 6.62 | 2h | 0.7 | 6.4 | 11 | 10.57 | 8 |
| 3 | 7.62 | 2h | 0.8 | 7.4 | 12.5 | 12.07 | 8 |
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