Standard: JB /T 6381.3 - 2007
Available sizes: 10 to 8 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 14 | 0.18 | 11.8×2.65G | 22 | 35 | R1 3/8 | R2 3/8 | 27 | 24 | 6.4 | 58 |
| 12 | 20 | 0.45 | 18×2.65G | 28 | 41 | R1 3/4 | R2 3/4 |
| 36 |
| 34 |
| 9.5 |
| 66 |
| 14 | 30 | 1.15 | 28×2.65G | 35 | 50 | R1 1-1/4 | R2 1-1/4 | 50 | 46 | 12.7 | 81 |
| 16 | 38 | 1.51 | 36.5×2.65G | 38 | 54 | R1 1-1/2 | R2 1-1/2 | 60 | 55 | 12.7 | 90 |
| 8 | 10 | 0.11 | 9×1.8G | 18 | 28 | R1 1/4 | R2 1/4 | 24 | 21 | 6 | 48 |
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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