Standard: Q 374
Available sizes: M3 to M6 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M3 | 6 | 1789 | 3220 | 4.92 | 9 | 5.9 | 5.97 | 6800 | 4000 | 4.8 | 1.5 |
| M4 | 9 | 3416 | 6149 | 7.65 | 12 | 8.9 | 8.97 | 16500 | 7800 | 7.5 | 1.5 |
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.
| M5 |
| 13 |
| 6626 |
| 11926 |
| 11.18 |
| 16 |
| 12.9 |
| 12.97 |
| 32000 |
| 17500 |
| 11 |
| 1.5 |
| M6 | 15 | — | 13914 | 13.18 | 18 | 14.9 | 14.97 | 34000 | — | 13 | 1.5 |
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