Standard: HG /T 20613
Available sizes: (M39) to M36 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M39) | 4 | 1.2 | 88.25 | 51.26 | 33.5 | 116 | 129 | 80 | 78.1 | 52 | 32.5 |
| (M45) | 4 | 2 | 93.56 | 55.26 | 35.5 | — | 137 |
| 85 |
| 82.8 |
| 56 |
| 34.5 |
| M36 | 3 | 1 | 66.4 | 38.38 | 25.42 | 90 | 103 | 60 | 58.8 | 39 | 24.58 |
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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