Standard: JB /T 8008.2 - 1999
Available sizes: 10 to 8 (6 sizes)
| Size | P | k_max | s_max | s_min | k_nominal |
|---|---|---|---|---|---|
| 10 | 22.5 | 5 | 38 | 12 | 1.5 |
| 12 | 33 | 5 | 55 | 16 | 2 |
| 16 | 46 | 5 | 80 | 20 | 2 |
| 20 | 52 | 5 | 90 | 20 | 2 |
| 6 | 9 | 3 | 18 | 8 | 1 |
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.
| 8 |
| 14 |
| 3 |
| 25 |
| 10 |
| 1 |
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