Standard: ZQ 4265 - 2006
Available sizes: 10 to 8 (8 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 20.2 | 12.7 | 14.1 | 2.82 | 21.4 | 20.6 | 3 | 21.26 | 19.3 | 2.94 | 21.82 |
| 12 | 24.2 | 16.7 | 18.1 | 2.82 | 25.4 | 24.6 | 3 | 25.26 | 23.3 | 2.94 | 25.82 |
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.
| 14 | 28.2 | 20.7 | 22.1 | 2.82 | 29.4 | 28.6 | 3 | 29.26 | 27.3 | 2.94 | 29.82 |
| 16 | 34.2 | 26.7 | 28.1 | 2.82 | 35.4 | 34.8 | 3 | 35.23 | 33.3 | 2.94 | 35.9 |
| 18 | 40.2 | 30.1 | 32 | 3.76 | 42 | 40.8 | 4 | 41.83 | 38.8 | 3.92 | 42.5 |
| 20 | 44.2 | 34.1 | 36 | 3.76 | 46 | 44.8 | 4 | 45.83 | 42.8 | 3.92 | 46.5 |
| 22 | 48.2 | 38.1 | 40 | 3.76 | 50 | 48.8 | 4 | 49.83 | 46.8 | 3.92 | 50.5 |
| 8 | 16.2 | 8.7 | 10.1 | 2.82 | 17.4 | 16.6 | 3 | 17.28 | 15.3 | 2.94 | 17.76 |
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