Standard: ZQ 4721 - 2006
Available sizes: 24 to 36 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 24 | 200 | 34 | 40 | 34 | 36 | 20 | 210 | 70 | 60 | 140 | 68 |
| 30 | 240 | 46 | 50 | 47 | 49 | 30 | 270 |
| 96 |
| 85 |
| 180 |
| 94 |
| 36 | 210 | 52 | 50 | 53 | 55 | 30 | 300 | 104 | 100 | 200 | 102 |
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.
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