Standard: GB 559
Available sizes: 1 to 6 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 4.90(0.50) | M10 | 12 | 42.5 | 12 | 14 | 14.7 | 11 | 11.5 | 40.5 | 12.7 |
| 2 | 7.84(0.80) | M14 | 15 | 54.6 | 15.5 | 18 | 18.9 | 14 | 14.5 | 52 | 16.4 |
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.
| 3 | 12.25(1.25) | M18 | 19 | 67.2 | 19 | 22 | 23.1 | 18 | 18.5 | 64 | 20 |
| 4 | 19.60(2.00) | M22 | 23.5 | 85 | 24 | 28 | 29.4 | 22 | 22.5 | 81 | 25.2 |
| 5 | 31.36(3.20) | M27 | 29.5 | 108.1 | 30 | 35 | 36.8 | 28 | 28.5 | 103 | 31.5 |
| 6 | 49.00(5.00) | M33 | 36.5 | 134.9 | 37.5 | 44 | 46.2 | 35 | 35.5 | 128.5 | 39.4 |
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