Standard: JB /T 8026.6 - 1999
Available sizes: 14 to 25 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| 14 | 10 | 12 | 5 | 10.028 | 10.019 | M8 | 20 | 4 |
| 16 | 12 | 15 | 6 | 12.034 | 12.023 | M12 | 25 | 6 |
| 18 | 16 | 18 | 9 | 16.034 | 16.023 | M20 | 35 | 8 |
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.
| 20 |
| 20 |
| 22 |
| 10 |
| 20.041 |
| 20.028 |
| M30 |
| 42 |
| 12 |
| 25 | 25 | 25 | 15 | 25.041 | 25.028 | M36 | 50 | 14 |
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