Standard: UNI 6593 - 1997
Available sizes: Φ4 to Φ6 (3 sizes)
| Standard Body | Standard Number |
|---|---|
| GB | GB /T 96.1 |
| DIN | DIN EN ISO 7093-1 |
| ISO | ISO 7093-1 |
| UNI | UNI 6593 |
| Size | P | s_max | s_min |
|---|---|---|---|
| Φ4 | 6.5 | 18 | 1.5 |
| Φ5 | 7.5 | 28 | 2 |
| Φ6 | 10.5 | 40 | 2.5 |
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.
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