Standard: GB /T 1567 - 2003
Available sizes: 10 to 8 (7 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal |
|---|---|---|---|---|---|---|
| 10 | 18 | 50~200 | 0.40~0.60 | 17.973 | 7 | 6.910 |
| 12 | 22 | 63~250 | 0.60~0.80 | 21.967 | 9 | 8.910 |
| 14 | 28 | 80~320 | 0.60~0.80 | 27.967 | 10 | 9.910 |
| 16 | 36 | 100~400 | 1.0~1.2 | 35.961 | 12 | 11.890 |
| 5 |
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.
| 6 |
| 14~70 |
| 0.25~0.40 |
| 5.982 |
| 4 |
| 3.925 |
| 6 | 10 | 22~110 | 0.40~0.60 | 9.978 | 6 | 5.925 |
| 8 | 14 | 36~160 | 0.40~0.60 | 13.973 | 6 | 5.925 |
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