Standard: QB /T 2577 - 2002
Available sizes: 120058G-1 to 310206G-2 (6 sizes)
| Size | P | k_max | s_max | s_min | k_nominal |
|---|---|---|---|---|---|
| 120058G-1 | 120 | 180 | 188 | 102 | 1 |
| 160166G-2 | 230 | 310 | 310 | 206 | 2 |
| 188102G-1 | 150 | 220 | 230 | 206 | 2 |
| 230206G-2 | 250 | 330 | 330 | 206 | 2 |
| 280206G-2 | 280 | 360 | 360 | 206 | 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.
| 310206G-2 | 320 | 400 | 400 | 215 | 2 |
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