Standard: GB /T 85 - 2018
Available sizes: M10 to M8 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 2.5 | 22 | 10.36 | 18 | 17.785 | 14.57 | 15 | 0.8 | 10 | 27.1 | 18.215 |
| M5 | 1 | 6 | 3.25 | 6 | 5.85 | 3.7 | 4 | 0.25 |
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.
| 3.0 |
| 7.3 |
| 6.15 |
| M6 | 1.5 | 10 | 5.3 | 8 | 7.82 | 6.64 | 7.0 | 0.4 | 5.0 | 12.2 | 8.18 |
| M8 | 2 | 17 | 8.36 | 14 | 13.785 | 11.57 | 12 | 0.6 | 8.0 | 20.9 | 14.215 |
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