Standard: GB /T 896 - 2020
Available sizes: 0.8 to 2.3 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.8 | 1.2 | 3.25 | 0.97 | 0.3 | 0.32 | 1.14 | 1.12 | 1.01 | 1.05 | 1.06 | 0.28 |
| 1.2 | 1.9 | 4.8 | 1.57 | 0.5 | 0.52 | 1.84 | 1.8 | 1.61 | 1.65 | 1.74 | 0.48 |
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.
| 1.5 | 3.2 | 7.3 | 2.66 | 0.6 | 0.62 | 3.125 | 3.06 | 2.7 | 2.74 | 2.985 | 0.58 |
| 1.9 | 5 | 11.3 | 4.062 | 0.7 | 0.72 | 4.925 | 4.83 | 4.11 | 4.158 | 4.755 | 0.68 |
| 2.3 | 6 | 12.3 | 5.212 | 0.7 | 0.72 | 5.925 | 5.81 | 5.26 | 5.308 | 5.735 | 0.68 |
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