Standard: GB /T 9160.2
Available sizes: 120 to 160 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| 120 | MBL 26 | 14 | 12 | 130 | 145 | 2 | 19 | 161 | 125 |
| 130 | MBL 30 | 16 | 14 | 150 | 170 | 2 | 19 | 188 | 145 |
| 140 | MBL 34 | 18 |
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.
| 16 |
| 170 |
| 190 |
| 2.5 |
| 19 |
| 211 |
| 164 |
| 150 | MBL 38 | 20 | 18 | 190 | 210 | 2.5 | 19 | 231 | 184 |
| 160 | MBL 40 | 20 | 18 | 200 | 222 | 2.5 | 19 | 248 | 194 |
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