Standard: GB 3750.3 - 1983
Available sizes: M10 to M16 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 1.5 | / | 12 | 15 | 18 | 6 | 6 | 2 | 34 | 2 | 7 |
| M12 | 1.5 | / | 15.5 | 20 | 24 | 10 | 8 | 2.5 | 40.5 | 2 | 8 |
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.
| M14 |
| 1.5 |
| / |
| 20 |
| 26 |
| 30 |
| 14 |
| 12 |
| 3 |
| 52 |
| 2 |
| 9 |
| M16 | 2 | 19 | 29.5 | 37 | 41 | 23 | 14 | 3 | 75 | 4 | 12 |
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