Standard: GB /T 9125 - 2003
Available sizes: M12 to M24 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| M12 | 2 | 14.3 | 13.6 | / | / | 23.16 | 25.94 | 24 |
| M14 | 2.5 | 20.7 | 19.4 | / | / | 33 | 37.29 | 34 |
| M16 | 3 | 27.6 | 26.3 | / | / |
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.
| 45 |
| 50.85 |
| 46 |
| M20 | 3.5 | 33.5 | 31.9 | / | / | 53.8 | 60.26 | 55 |
| M24 | / | 39.5 | 37.9 | 3 | / | 63.1 | 70.67 | 65 |
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