Standard: HG /T 20627
Available sizes: 15 to 65 (7 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| 15 | 3/4 | 66.5 | 1.5 | 27 | 56 | 66.5 | 3 |
| 20 | 1-1/4 | 82.5 | 1.5 | 43 | 75 | 82.5 | 3 |
| 25 | 2 | 111 | 1.5 | 61 | 104.5 | 111 | 3 |
| 32 | 3 | 148.5 | 1.5 | 89 | 136.5 | 148.5 | 3 |
| 40 | 5 | 240 | 1.5 | 140 | 196 | 215 | 3 |
| 50 | 8 | 319 | 1.5 | 220 | 278.5 | 306 | 3 |
| 65 | 10 | 399 | 1.5 | 273 | 338 | 360.5 | 3 |
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.
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