Standard: GB /T 95 - 2002
Available sizes: (Φ3.5) to Φ6 (8 sizes)
| Standard Body | Standard Number |
|---|---|
| GB | GB /T 95 |
| DIN | DIN EN ISO 7091 |
| ISO | ISO 7091 |
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| (Φ3.5) | 11 | 2 | 2.3 | 11.43 | 20 | 3.44 | 18.7 | 1.7 |
| Φ1.6 | 2.4 | 0.3 | 0.4 | 2.65 | 5 | 0.036 | 4.25 | 0.2 |
| Φ2 | 3.4 | 0.5 | 0.6 | 3.7 | 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.
| 0.115 |
| 6.1 |
| 0.4 |
| Φ2.5 | 4.5 | 0.8 | 1 | 4.8 | 9 | 0.3 | 8.1 | 0.6 |
| Φ3 | 6.6 | 1.6 | 1.9 | 6.96 | 12 | 0.991 | 10.9 | 1.3 |
| Φ4 | 15.5 | 2.5 | 2.8 | 15.93 | 28 | 8.38 | 26.7 | 2.2 |
| Φ5 | 20 | 3 | 3.6 | 20.43 | 34 | 13.98 | 32.4 | 2.4 |
| Φ6 | 22 | 3 | 3.6 | 22.52 | 37 | 16.37 | 35.4 | 2.4 |
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