Standard: JB /T 9592.1 - 1999
Available sizes: M10 to M8 (7 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 1.5 | 31.20 | 2.75 | 23.26 | 22.74 | 21.9 | 21.82 | 23.79 | 3.00 | 23 | 24.00 |
| M12 | 2 | 41.30 | 4.20 | 34.31 | 33.69 | 29.00 | 28.92 |
| 31.75 |
| 4.50 |
| 34 |
| 32.00 |
| M16 | 3 | 54.00 | 5.20 | 41.31 | 40.69 | 36.00 | 35.90 | 40.75 | 5.50 | 41 | 41.00 |
| M20 | 3 | 63.50 | 7.14 | 49.31 | 48.69 | 43.00 | 42.90 | 45.75 | 7.50 | 46 | 46.00 |
| M24 | 3 | 71.50 | 8.14 | 57.37 | 56.63 | 49.00 | 48.90 | 54.70 | 8.50 | 57 | 55.00 |
| M6 | 1.25 | 13.00 | 1.15 | 11.21 | 10.79 | 9.40 | 9.34 | 9.85 | 1.40 | 11 | 10.00 |
| M8 | 1.5 | 21.00 | 2.25 | 17.21 | 16.79 | 13.50 | 13.43 | 13.82 | 2.50 | 17 | 14.00 |
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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