Standard: GB 1013 - 1986
Available sizes: (Φ1.6) to Φ3 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (Φ1.6) | 2.56 | 2.74 | 1.44 | 1.5 | 1.1 | 2.44 | 4.74 | 1.44 | 1.62 | 4.26 | 1.62 |
| (Φ3.5) | 10.1 | 10.35 | 7.4 | 5.24 | 4.76 | 9.9 | 18.35 | 7.4 | 7.7 | 17.65 | 7.7 |
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.
| Φ1.4 | 1.66 | 1.84 | 0.75 | 0.9 | 0.7 | 1.54 | 3.2 | 0.75 | 0.87 | 2.8 | 0.87 |
| Φ2 | 3.58 | 3.79 | 2.14 | 2 | 1.6 | 3.42 | 6.59 | 2.14 | 2.32 | 6.01 | 2.32 |
| Φ2.5 | 5.08 | 5.29 | 3.22 | 2.7 | 2.3 | 4.92 | 9.29 | 3.42 | 3.46 | 8.71 | 3.66 |
| Φ3 | 8.1 | 8.35 | 4.42 | 4.24 | 3.76 | 7.9 | 14.75 | 5.92 | 4.66 | 14.05 | 6.16 |
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