Standard: Q 440
Available sizes: (Φ3.2) to Φ4 (3 sizes)
| Size | P | e | r | k_max | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| (Φ3.2) | 5.08 | 2000 | 2150 | 2.1 | 4.85 | 10.5 | 27 | 1400 | 8.7 | 2.95 |
| Φ3 | 3.28 | 700 | 750 | 1.3 | 3.05 | 6.7 | 25 | 500 | 5.8 |
| 2 |
| Φ4 | 6.08 | 3000 | 3200 | 2.5 | 5.85 | 12.6 | 27 | 2100 | 10.8 | 3.4 |
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.
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