Standard: ZQ 4340 - 2006
Available sizes: 10 to 8 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| 10 | 31.6 | 3.6 | 2.5 | 32.12 | 45 | 44.38 | 13.7 |
| 4 | 5.3 | 1.2 | 0.8 | 5.6 | 9 | 8.64 | 0.22 |
| 5 | 8.4 | 1.7 | 1.2 | 8.76 | 13 | 12.57 | 0.59 |
| 6 | 13 | 2.1 | 1.5 |
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.
| 13.43 |
| 18 |
| 17.57 |
| 1.12 |
| 8 | 21 | 2.8 | 2 | 21.52 | 30 | 29.48 | 4.35 |
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