Standard: GB 954 - 1986
Available sizes: (Φ1.2) to Φ3 (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|
| (Φ1.2) | 1.46 | 0.1 | 0.2 | 1.34 | 3.45 | 3.15 | 0.6 |
| (Φ1.6) | 3.06 | 0.1 | 0.2 | 2.94 | 6.28 | 5.92 | 1 |
| Φ1.4 | 2.06 | 0.1 | 0.2 | 1.94 | 4.75 | 4.45 | 0.8 |
| Φ2 | 4.08 | 0.3 | 0.4 |
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.
| 3.92 |
| 7.98 |
| 7.62 |
| 1.2 |
| Φ2.5 | 6.08 | 0.3 | 0.4 | 5.92 | 11.72 | 11.28 | 1.7 |
| Φ3 | 8.1 | 0.3 | 0.4 | 7.9 | 15.82 | 15.38 | 2.3 |
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