Standard: GB 1016 - 1986
Available sizes: Φ1.4 to Φ4 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal |
|---|---|---|---|---|---|---|
| Φ1.4 | 2 | 1.74 | 1.26 | 1.94 | 1.32 | 1.14 |
| Φ2 | 3 | 2.74 | 2.26 | 2.94 | 1.92 | 1.74 |
| Φ2.5 | 5 | 4.29 | 3.71 | 4.92 | 3.76 | 3.52 |
| Φ3 | 8 | 6.29 | 5.71 | 7.9 | 6.16 | 5.92 |
| Φ4 |
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.
| 10 |
| 7.35 |
| 6.65 |
| 9.9 |
| 7.2 |
| 6.9 |
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