Standard: GB /T 889.2 - 2000
Available sizes: (M14) to M8 (5 sizes)
| Size | P | k_max | k_min | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| (M14) | 2 | 30.1 | 24.3 | 50.85 | 45 | 223 | 32.6 | 46 |
| M10 | 1.5 | 15.9 | 12.1 | 23.36 | 20.67 | 24.61 | 17 | 21 |
| M12 | 1.5 | 20.7 | 16.9 | 32.95 |
| 29.16 |
| 63.01 |
| 22.8 |
| 30 |
| M16 | 3 | 36.4 | 29.4 | 60.79 | 53.8 | 388.8 | 38.9 | 55 |
| M8 | 1.25 | 11.2 | 8.04 | 17.77 | 15.73 | 10.35 | 11.9 | 16 |
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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