Standard: HB 6900 - 1993
Available sizes: MJ10 to MJ8 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MJ10 | 1.5 | 23 | 21.67 | 16.84 | 4.1 | 18 | 17.82 | 3.85 | 22 | 17.1 | 4.35 |
| MJ12 | 1.5 | 27 | 26.67 | 19.57 | 4.9 | 22 | 21.79 | 4.65 | 27 | 19.9 | 5.15 |
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.
| MJ14 | 1.5 | 28.5 | 29.67 | 21.57 | 5.3 | 24 | 23.79 | 5.05 | 30 | 21.9 | 5.55 |
| MJ5 | 1 | 10 | 7.85 | 8.18 | 1.2 | 6 | 5.88 | 1.05 | 8 | 8.4 | 1.35 |
| MJ6 | 1.25 | 15.5 | 11.82 | 11.33 | 2.1 | 10 | 9.85 | 1.95 | 12 | 11.6 | 2.25 |
| MJ8 | 1.5 | 19 | 16.73 | 14.03 | 3.2 | 14 | 13.82 | 2.95 | 17 | 14.3 | 3.45 |
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