Standard: HG /T 21573.3
Available sizes: M48 to M64 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M48 | 4 | 77 | 125 | 89 | 18 | 52 | 75 | 10 | 64 | 54 | 10 |
| M52 | 4 | 94 | 150 | 108 | 20 | 64 | 92 | 10 | 76 | 66 | 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.
| M56 |
| 4 |
| 117 |
| 190 |
| 135 |
| 24 |
| 80 |
| 115 |
| 10 |
| 94 |
| 82 |
| 14 |
| M64 | 4 | 132 | 210 | 152 | 28 | 90 | 130 | 10 | 105 | 92 | 14 |
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