Standard: JB /T 9150 - 1999
Available sizes: M10 to M8 (4 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| M10 | 17.5 | 5.5 | 3 | 5 | 4.6 | 3.31 | 3.06 | 1.5 | 3 |
| M12 | 24.5 | 7.5 | 4.2 | 7 | 6.4 | 3.31 | 3.06 | 2.5 | 3 |
| M6 |
| 8.8 |
| 3 |
| 1.5 |
| 2.5 |
| 2.3 |
| 1.2 |
| 1.06 |
| 0.7 |
| 1 |
| M8 | 12.3 | 4 | 2. 1 | 3.5 | 3.2 | 1.81 | 1.56 | 1 | 1.5 |
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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