Standard: JB /T 1700
Available sizes: 20 to 32 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 20 | M33 | 43 | 10 | 1.5 | 52 | 3 | 0.085 | 22 | 6 |
| 22 | M45 | 59 | 12 | 1.5 | 68 | 3.5 | 0.14 | 28 | 8 |
| 26 | M52 | 67 |
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.
| 12 |
| 1.5 |
| 78 |
| 3.5 |
| 0.22 |
| 32 |
| 8 |
| 28 | M65 | 84 | 20 | 2 | 95 | 3.5 | 0.59 | 40 | 8 |
| 32 | M65 | 84 | 20 | 2 | 95 | 3.5 | 0.59 | 40 | 8 |
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