Standard: UNI 5729 - 1965
Available sizes: M10 to M8 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 2.5 | 29.16 | 30 | 46 | 52 | 20 | 20.42 | 40 | 54 | 19.58 | 41 |
| M12 | 3 | 40 | 41 | 60 | 66 | 27 | 27.42 |
| 58.8 |
| 80 |
| 26.58 |
| 60 |
| M16 | 3.5 | 45 | 46 | 66 | 72 | 30 | 30.42 | 63.8 | 85 | 29.58 | 65 |
| M6 | 1.25 | 12.57 | 13 | 22 | / | 8 | 8.29 | 18.48 | 25 | 7.71 | 19 |
| M8 | 1.75 | 18.48 | 19 | 30 | 36 | 12 | 12.35 | 26.16 | 36 | 11.65 | 27 |
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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