Standard: QC /T 887
Available sizes: 10 to 8 (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal |
|---|---|---|---|---|---|---|
| 10 | 1 | 14.7 | 17.3 | 60 | 44 | 57 |
| 15 | 1-1/2 | 17.8 | 18.4 | 79 | 64 | 76 |
| 20 | 2-1/2 | 23.6 | 28.9 | 92 | 92 | 108 |
| 25 | 4 | 27.7 | 33 | 121 | 140 | 159 |
| 6 |
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.
| 1/4 |
| 8.1 |
| 10.2 |
| 35 |
| 19 |
| 25 |
| 8 | 1/2 | 10.9 | 13.6 | 48 | 28 | 38 |
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