Standard: JB /T 6144.2 - 2007
Available sizes: 10 to 8 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 10 | G 1-1/4 A | 22 | 42 | M52×2 | 24 | 42 | 0.78 | 55 | 64 |
| 15 | G 2 A | 26 | 52 | M64×2 | 40 | 60 | 1.14 | 75 | 76 |
| 4 | G 1/8 A | 12 |
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 |
| M18×1.5 |
| 3.5 |
| 10 |
| 0.04 |
| 18 |
| 32 |
| 6 | G 1/4 A | 14 | 22 | M22×1.5 | 7 | 14 | 0.08 | 24 | 34 |
| 8 | G 1/2 A | 16 | 28 | M30×2 | 10 | 22 | 0.14 | 30 | 44 |
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