Standard: GB /T 19674.1 - 2005
Available sizes: M10 to M8 (7 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| M10 | 7 | 1.5 | 12 | 14 | 14.2 | 0.1 | 20 | 15 |
| M12 | 11 | 2 | 12 | 18 | 18.2 | 0.1 | 25 | 15 |
| M14 | 14 | 2.5 | 14 | 22 |
| 22.2 |
| 0.1 |
| 28 |
| 17 |
| M16 | 16 | 2.5 | 16 | 27 | 27.3 | 0.2 | 33 | 20 |
| M18 | 30 | 2.5 | 20 | 42 | 42.3 | 0.2 | 51 | 24 |
| M20 | 36 | 2.5 | 22 | 48 | 48.3 | 0.2 | 56 | 36 |
| M8 | 1.5 | 1 | 8 | 10 | 10.2 | 0.1 | 15 | 10 |
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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