Standard: HG /T 21545
Available sizes: (M18) to M30 (7 sizes)
| Size | P | k_max | k_min | s_max | s_min |
|---|---|---|---|---|---|
| (M18) | 60 | 75 | 95 | 15 | 26 |
| (M22) | 80 | 90 | 120 | 22 | 39 |
| (M27) | 100 | 110 | 140 | 30 | 54 |
| M16 | 50 | 75 | 90 | 13 | 22 |
| M20 | 70 | 80 |
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.
| 105 |
| 20 |
| 33 |
| M24 | 90 | 100 | 130 | 25 | 46 |
| M30 | 110 | 120 | 150 | 35 | 58 |
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