Standard: CB /T 3818
Available sizes: M22 to M36 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| M22 | 32 | 80 | 540 | 32 | 26 | 5.7 | 52 | 775 |
| M24 | 44 | 100 | 665 | 40 | 32 | 11.3 | 69 | 915 |
| M27 | 52 | 120 | 770 | 49 | 41 | 19.3 | 78 | 1035 |
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.
| M30 |
| 64 |
| 140 |
| 890 |
| 58 |
| 50 |
| 32.9 |
| 94 |
| 1180 |
| M36 | 68 | 150 | 920 | 65 | 57 | 40.9 | 104 | 1210 |
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