Standard: GB 5785 - 1986
Available sizes: (M14) to M8 (6 sizes)
| Standard Body | Standard Number |
|---|---|
| GB | GB /T 5785 |
| DIN | DIN EN ISO 8765 |
| ISO | ISO 8765 |
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M14) | 2 | 21.48 | 21.67 |
| 69 |
| 0.8 |
| / |
| 50 |
| 24.4 |
| 22 |
| 56 |
| 0.2 |
| (M18) | 2 | 29.48 | / | 85 | 0.8 | / | 66 | 33.4 | 30 | 72 | 0.2 |
| M10 | 1.5 | 13.57 | 13.73 | 53 | 0.6 | / | 34 | 15.7 | 14 | 40 | 0.15 |
| M12 | 1.5 | 17.57 | 17.73 | 61 | 0.8 | / | 42 | 20.2 | 18 | 48 | 0.2 |
| M16 | 2 | 26.48 | / | 79 | 0.8 | / | 60 | 30.4 | 27 | 66 | 0.2 |
| M8 | 1 | 9.64 | 9.78 | / | 0.6 | (1.25) | 26 | 11.2 | 10 | 32 | 0.15 |
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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