Standard: QC /T 343 - 1999
Available sizes: M10 to M8 (4 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| M10 | 23.67 | 14.0 | 30.0 | 23.34 | 26.37 | 15.0 | 26.0 |
| M5 | 9.78 | 6.0 | 13.0 | 9.56 | 10.80 | 6.5 | 11.0 |
| M6 | 15.73 | 9.0 | 20.0 | 15.46 | 17.47 | 9.5 | 17.0 |
| M8 | 20.67 | 13.0 | 26.5 |
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.
| 20.34 |
| 22.98 |
| 14.0 |
| 23.5 |
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