Standard: GB /T 97.1 - 1985
Available sizes: Φ1.6 to Φ3 (4 sizes)
| Standard Body | Standard Number |
|---|---|
| GB | GB /T 97.1 |
| DIN | DIN 125-1 |
| ISO | ISO 7089 |
| UNI | UNI 6592 |
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| Φ1.6 | 2.34 | 0.3 | 0.35 | 2.2 | 5 | 0.03 | 4.7 | 0.25 |
| Φ2 | 3.38 | 0.5 | 0.55 | 3.2 | 7 | 0.1 | 6.64 | 0.45 |
| Φ2.5 | 5.48 | 1 | 1.1 | 5.3 | 10 |
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.
| 0.4 |
| 9.64 |
| 0.9 |
| Φ3 | 8.62 | 1.6 | 1.8 | 8.4 | 16 | 1.68 | 15.57 | 1.4 |
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