Standard: HG /T 20627
Available sizes: 15 to 40 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| 15 | 3/4 | 16 | 69.9 | 27 | 98 | 4 | 1.5 |
| 20 | 1-1/4 | 16 | 88.9 | 43 | 117 | 4 | 1.5 |
| 25 | 2 | 18 | 120.7 | 61 | 152 | 4 | 1.5 |
| 32 |
| 3 |
| 18 |
| 152.4 |
| 89 |
| 191 |
| 4 |
| 1.5 |
| 40 | 5 | 22 | 215.9 | 141 | 254 | 8 | 1.5 |
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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