Standard: Q 370
Available sizes: M4 to M8 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M4 | 0.8 | 0.6 | 0.7 | 6.91 | 7.22 | 1 | 0.6 | 5.25 | 10.95 | 7 | 7 |
| M5 | 1.25 | 0.75 | 0.9 | 10.39 | 10.77 | 1.25 | 0.75 | 8.4 | 15.38 | 10.5 | 10.5 |
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.
| M6 | 1.75 | 1.2 | 1.4 | 14.69 | 15.07 | 1.55 | 0.95 | 12.6 | 20.91 | 14.8 | 14.8 |
| M8 | 2 | 1.6 | 1.8 | 18.67 | 19.13 | 1.9 | 1.1 | 16.8 | 26.51 | 18.8 | 18.8 |
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