Standard: JB /T 8026.2 - 1999
Available sizes: Tr16 to Tr24 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tr16 | 4 | 12 | 3 | 10 | 16.5 | 19.6 | 17 | 12 | 5 | 16.73 | 14.9 |
| Tr20 | 6 | 20 | 5 | 15 | 26 | 31.2 | 27 | 20 | 7.5 | 26.67 | 22.2 |
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.
| Tr24 |
| 6 |
| 24 |
| 5 |
| 18 |
| 31 |
| 36.9 |
| 34 |
| 24 |
| 7.5 |
| 33.38 |
| 28.2 |
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