Standard: JG /T 5057.10 - 1995
Available sizes: M12 to M24 (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M12 | 2 | 20.67 | 21 | 12 | 12.212 | 7 | 14 | 14 | 13.57 | 13.73 | 12.032 |
| M14 | 2.5 | 26.67 | 27 | 16 | 16.212 | 9 | 18 |
| 18 |
| 17.57 |
| 17.73 |
| 16.032 |
| M16 | 2.5 | 33.51 | 34 | 18 | 18.23 | 11 | 22 | 22 | 21.48 | 21.67 | 18.05 |
| M18 | 3 | 40.61 | 41 | 20 | 20.275 | 13.5 | 27 | 27 | 26.48 | 26.67 | 20.065 |
| M20 | 3.5 | 48.61 | 49 | 24 | 24.275 | 17 | 33 | 33 | 32.38 | 32.61 | 24.065 |
| M22 | 4 | 57.54 | 58 | 30 | 30.33 | 21 | 39 | 39 | 38.38 | 38.61 | 30.08 |
| M24 | 4.5 | 62.54 | 63 | 34 | 34.33 | 23 | 42 | 42 | 41.38 | 41.61 | 34.08 |
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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