Standard: QC /T 362 - 1999
Available sizes: (M14) to M20 (5 sizes)
| Size | k_max | k_min | s_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|
| (M14) | 26.67 | 7 | (1.5) | 27 | 6.1 |
| (M18) | 40.38 | 10 | (2) | 41 | 9.1 |
| M12 | 20.67 | 5 | (1.5) | 21 | 4.52 |
| M16 | 33.38 | 8 | (1.5) | 34 | 8.1 |
| M20 | 54.26 | 12 | 3 | 55 |
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.
| 10.9 |
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