Standard: UNI 5714 - 1975
Available sizes: 13 to 19 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 13 | 15.27 | M14 | 3.4 | 28 | 27.5 | 15 | 1.6 | 4 | 4.3 | 1.9 | 1 |
| 15 | 19.33 | M18 | 3.4 | 34 | 33.2 | 19 | 1.6 | 4 |
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.
| 4.3 |
| 1.9 |
| 1 |
| 17 | 23.33 | M22 | 3.4 | 39 | 38.2 | 23 | 2 | 4 | 4.3 | 2.5 | 1 |
| 19 | 28.33 | M27 | 4.4 | 50 | 49.2 | 28 | 2.5 | 5 | 5.6 | 3 | 1 |
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