Standard: GB /T 5625
Available sizes: 10 to 8 (8 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 10 | 17 | 58.5 | / | M27×2 | G3/4 | 26 | 34 | M30×2 | 16 |
| 12 | 22 | 64 | / | M33×2 | G1 | 26 | 41 | M36×2 | 18 |
| 14 |
| 27 |
| 71 |
| / |
| M42×2 |
| G1-1/4 |
| 28.5 |
| 50 |
| M42×2 |
| 20 |
| 16 | 30 | 71.5 | / | M42×2 | G1-1/4 | 28.5 | 50 | M45×2 | 20 |
| 4 | 3.5 | 31.5 | 36 | M10×1 | G1/8 | 12.5 | 14 | M10×1 | 8 |
| 5 | 6 | 44 | 52 | M12×1.5 | G1/4 | 18 | 17 | M14×1.5 | 12 |
| 6 | 10 | 45.5 | 57 | M16×1.5 | G3/8 | 19 | 22 | M18×1.5 | 12 |
| 8 | 14② | 49 | 65 | M22×1.5 | G1/2 | 20 | 30 | M24×1.5 | 14 |
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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