Standard: GB /T 895.1 - 1986
Available sizes: 10 to 8 (7 sizes)
| Size | P | k_max | s_max | s_min | k_nominal |
|---|---|---|---|---|---|
| 10 | 18.0 | 0.68 | 18.43 | 1.6 | 8 |
| 12 | 22.5 | 1.33 | 23.02 | 2.0 | 10 |
| 14 | 26.5 | 1.64 | 27.02 | 2.0 | 10 |
| 16 | 28.5 | 1.79 | 29.02 | 2.0 | 10 |
| 18 | 30.5 | 1.95 |
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.
| 31.12 |
| 2.0 |
| 10 |
| 7 | 9.0 | 0.09 | 9.22 | 0.8 | 4 |
| 8 | 13.5 | 0.2 | 13.93 | 1.0 | 6 |
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