Standard: JB /T 9150 - 1999
Available sizes: M10 to M8 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 20 | 30 | 12.85 | 32.95 | 12.5 | 19.67 | 19.48 | 12.72 | 12.15 | 33.53 | 12.28 |
| M12 | 30 | 46 | 19.12 | 50.85 | 18.7 | — | 29.48 |
| — |
| 18.28 |
| — |
| — |
| M6 | 8 | 14/13 | 5.54 | 14.2 | 5.3 | 7.78 | 7.64 | 5.45 | 5.06 | 14.38 | 5.15 |
| M8 | 12 | 19/18 | 7.79 | 19.85 | 7.5 | 11.73 | 11.57 | 7.68 | 7.21 | 20.03 | 7.32 |
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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