Standard: Q 340
Available sizes: M3 to M8 (5 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M3 | 0.7 | 7 | 2.3 | 4 | 5.9 | 0.4 | 0.15 | 3.2 | 2.9 | 4.6 | 7.66 |
| M4 | 1 | 10 | 3.9 | 6 | 8.9 | 0.5 | 0.15 | 5.2 | 4.9 | 6.75 | 11.05 |
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 |
| 1.5 |
| 16 |
| 6.4 |
| 10 |
| 14.6 |
| 0.6 |
| 0.15 |
| 8.4 |
| 8.04 |
| 10.8 |
| 17.77 |
| M6 | 2 | 21 | 9.7 | 14 | 19.6 | 0.6 | 0.15 | 12.8 | 12.1 | 15.1 | 23.36 |
| M8 | 2 | 24 | 11.3 | 16 | 22.5 | 0.8 | 0.2 | 14.8 | 14.1 | 17.3 | 26.75 |
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