Standard: GB 559
Available sizes: 1 to 5 (5 sizes)
| Size | P | s_max |
|---|---|---|
| 1 | M12 | 4.90(0.50) |
| 2 | M14 | 7.84(0.80) |
| 3 | M18 | 12.25(1.25) |
| 4 | M24 | 19.60(2.00) |
| 5 | M30 | 31.36(3.20) |
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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