Standard: QC /T 384 - 1999
Available sizes: Z1/2-14 to Z3/8-18 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Z1/2-14 | 22×8 | 16 | 5 | 22 | 22.14 | 10.16 | 33.228 | 28 | 3 | 22 | 26 |
| Z3/4-14 | 26×10 | 21 | 6 | 26 | 26.14 | 10.668 | 41.985 |
| 36 |
| 4 |
| 24 |
| 30 |
| Z3/8-18 | 12×5 | 10 | 2.5 | 12 | 12.12 | 8.128 | 21.223 | 17.5 | 2 | 16 | 14 |
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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