Standard: GB /T 9125.2 - 2020
Available sizes: M14 to M30 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M14 | 2 | 22.49 | 15.57 | 0.8 | 0.2 | 38 | 44 | 16 | 15.73 | 57 | 17.7 |
| M16 | 3 | 33.61 | 23.48 | 0.8 | 0.2 | 54 | 60 |
| 24 |
| 23.67 |
| 73 |
| 26.4 |
| M20 | 3.5 | / | 29.48 | 0.8 | 0.2 | 66 | 72 | 30 | / | 85 | 33.4 |
| M24 | 3 | / | 35.38 | 0.8 | 0.2 | / | 84 | 36 | / | 97 | 39.4 |
| M27 | 3 | / | 41.38 | 1 | 0.3 | / | 96 | 42 | / | 109 | 45.6 |
| M30 | 3 | / | 47.38 | 1 | 0.3 | / | 108 | 48 | / | 121 | 52.6 |
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.
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