Standard: GB /T 3757 - 2008
Available sizes: (14) to 8 (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| (14) | L | 40 | 88 | 10 | M36×2 | 60 | 24 | 73 |
| 10 | L | 28 | 84 | 25 | M22×1.5 | 60 | 12 | 70 |
| 12 | L | 32 | 84 | 16 |
| M26×1.5 |
| 60 |
| 15 |
| 69 |
| 15 | L | 50 | 92 | 10 | M45×2 | 60 | 30 | 71 |
| 6 | L | 20 | 70 | 25 | M14×1.5 | 50 | 6 | 56 |
| 8 | L | 25 | 72 | 25 | M18×1.5 | 50 | 10 | 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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