Standard: GB 559
Available sizes: M10 to M8 (7 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| M10 | 22 | 8.3 | 25.4 | 21.48 | 9 | 9.7 | 0.018 |
| M12 | 30 | 11.3 | 34.6 | 29.48 | 12 | 12.7 | 0.046 |
| M14 | 41 | 17.3 | 47.3 | 40 | 18 | 18.7 | 0.137 |
| M16 | 50 | 19.16 | 58.2 |
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.
| 48.8 |
| 20 |
| 20.84 |
| 0.231 |
| M20 | 60 | 21.16 | 69.4 | 58.8 | 22 | 22.84 | 0.041 |
| M24 | 70 | 25.16 | 81 | 68.6 | 26 | 26.84 | 0.617 |
| M8 | 17 | 5.3 | 19.6 | 16.48 | 6 | 6.7 | 0.008 |
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