Standard: DIN 1474 - 1978
Available sizes: Φ1.5 to Φ6 (7 sizes)
| Standard Body | Standard Number |
|---|---|
| EN | EN ISO 8741 |
| GB | GB /T 13829.7 |
| DIN | DIN EN ISO 8741 |
| ISO | ISO 8741 |
| Size | P | k_max | s_max | s_min | k_nominal |
|---|---|---|---|---|---|
| Φ1.5 | 1.975 | 70° | 2 | 0.25 | 2.85 |
| Φ2 | 2.975 | 70° | 3 | 0.4 | 6.15 |
| Φ2.5 | 4.925 | 70° | 5 | 0.63 | 16.5 |
| Φ3 | 7.91 | 70° | 8 | 1 | 40.5 |
| Φ4 | 11.89 | 70° |
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.
| 12 |
| 1.6 |
| 91.0 |
| Φ5 | 15.89 | 70° | 16 | 2 | 156.8 |
| Φ6 | 24.87 | 70° | 25 | 3 | 370.1 |
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