Standard: GB 3762 - 1983
Available sizes: 10 to 16 (4 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal |
|---|---|---|---|---|---|---|
| 10 | 12.2 | M12×1.5 | 0.43 | 15 | 18 | 4 |
| 12 | 16.2 | M16×1.5 | 0.55 | 19 | 22 | 4 |
| 14 | 22.2 | M22×1.5 | 0.9 | 25 | 28 | 5 |
| 16 | 33.2 | M33×2 | 1.89 | 36.5 |
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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