Standard: GB /T 5976 - 2006
Available sizes: 10 to 8 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| 10 | ＞ 14~16 | 8.5 | 77 | 31.0 | 32 | 0.402 | 63 | M14 |
| 12 | ＞ 18~20 | 10.5 | 92 | 37.0 | 37 | 0.624 | 74 | M16 |
| 14 | ＞ 22~24 | 13.0 | 113 | 45.5 | 46 | 1.205 | 91 | M20 |
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 | ＞ 6~8 | 4.5 | 41 | 17.0 | 19 | 0.073 | 36 | M8 |
| 8 | ＞ 10~12 | 6.5 | 62 | 25.0 | 28 | 0.243 | 53 | M12 |
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