Standard: GB 3759 - 1983
Available sizes: 10 to 8 (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | E16/G(25) | 7.34 | 34 | 20.3 | 16.5 | M27*1.5 | 20 | 5.5 | 23 | 20.4 | 11 |
| 12 | E16/G(25) | 14.3 | 41 | 25.3 | 17.5 | M33*2 | 25 | 5.5 | 24.5 | 25.4 | 12.5 |
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.
| 14 | E16/G(25) | 19.3 | 50 | 32.3 | 18 | M42*2 | 32 | 6 | 25 | 32.4 | 12.5 |
| 4 | E16/G(25) | 0.71 | 15 | 5.21 | 10 | M10*1 | 5 | 3.5 | 13 | 5.28 | 7 |
| 5 | E16/G(25) | 1.74 | 18 | 8.21 | 12 | M14*1.5 | 8 | 4 | 16 | 8.28 | 8.5 |
| 6 | E16/G(25) | 3.16 | 24 | 12.3 | 14 | M18*1.5 | 12 | 5 | 18.5 | 12.4 | 9.5 |
| 8 | E16/G(25) | 4.91 | 27 | 16.3 | 14 | M22*1.5 | 16 | 5 | 19.5 | 16.4 | 9.5 |
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