Standard: EN 3637 - 2023
Available sizes: MJ5 to MJ8 (4 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MJ5 | 060 | 2.33 | 5.5 | 8.1 | 10.6 | 6.3 | 7.1 | 1.2 | 2.3 | 8 | 9.8 |
| MJ6 | 080 | 4.34 | 6.9 | 10.4 | 13.6 | 8.3 | 9.1 |
| 1.2 |
| 2.8 |
| 10 |
| 12.8 |
| MJ7 | 120 | 14.58 | 10.1 | 15 | 19.9 | 12.3 | 13.1 | 1.4 | 3.5 | 14 | 18.8 |
| MJ8 | 140 | 19.79 | 12.6 | 17.5 | 23 | 14.4 | 15.2 | 1.7 | 4 | 17 | 21.9 |
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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