Standard: QC /T 862 - 2011
Available sizes: M4 to M6 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M4 | 9.45 | 7.5 | 30 | 5.48 | 5 | 8.55 | 14.55 | 6.82 | 11.5 | 13.45 | 7.18 |
| M5 | 15.55 | 13 | 38 | 7.58 | 7 | 14.45 | 20.65 | 10.78 | 16 | 19.35 | 11.22 |
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.
| M6 | 21.65 | 19 | 42 | 11.7 | 11 | 20.35 | 27.65 | 14.78 | 21 | 26.35 | 15.22 |
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