Standard: HG /T 20613 - 2009
Available sizes: Φ12 to Φ24 (5 sizes)
| Size | P | s_max | s_min |
|---|---|---|---|
| Φ12 | 15 | 28 | 2.5 |
| Φ14 | 21 | 37 | 3 |
| Φ16 | 28 | 50 | 4 |
| Φ20 | 34 | 60 | 5 |
| Φ24 | 42 | 72 | 6 |
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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