Standard: GB /T 24425.1 - 2009
Available sizes: M10 to M8 (4 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 1 | 1.2 | 15 | 6.5 | 13.78 | 14.18 | 30° | 70° | 14.18 | 9.3 |
| M12 | 2 | 3 | 24.2 | 11.1 | 22.67 | 23.12 | 30° | 60° | 23.12 |
| 15.5 |
| M14 | 2 | 3 | 26.8 | 12.1 | 24.67 | 25.27 | 30° | 60° | 25.27 | 17 |
| M8 | 1.25 | 1.2 | 12.65 | 5.7 | 11.57 | 11.87 | 40° | 80° | 11.87 | 7.8 |
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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