Standard: HB 7438 - 2013
Available sizes: MJ4 to MJ6 (3 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MJ4 | 0.8 | 0.5 | 0.96 | 0.1 | 10 | 5 | 4.88 | 7.71 | 10.4 | 2.11 | 9 |
| MJ5 | 1 | 0.7 | 1.6 | 0.1 | 16 | 8 | 7.85 |
| 10.80 |
| 14.5 |
| 3.38 |
| 14.8 |
| MJ6 | 1.25 | 0.7 | 1.93 | 0.1 | 20 | 10 | 9.85 | 14.80 | 18.0 | 4.25 | 18.8 |
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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