Standard: ISO 5856 - 2008
Available sizes: 030 to 080 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 030 | MJ4×0.7-4h6h | 4 | 3.978 | 3.99 | 3.965 | 4 | 3.97 | 3.88 | 3.99 | 3.955 | 4 |
| 040 | MJ6×1-4h6h | 6 | 5.978 | 5.99 | 5.965 | 6 | 5.97 |
| 5.88 |
| 5.99 |
| 5.955 |
| 6 |
| 050 | MJ8×1-4h6h | 8 | 7.972 | 7.987 | 7.962 | 8 | 7.967 | 7.85 | 7.987 | 7.952 | 8 |
| 060 | MJ12×1.25-4h6h | 12 | 11.966 | 11.984 | 11.959 | 12 | 11.964 | 11.82 | 11.984 | 11.949 | 12 |
| 070 | MJ16×1.5-4h6h | 16 | 15.966 | 15.984 | 15.959 | 16 | 15.964 | 15.82 | 15.984 | 15.949 | 16 |
| 080 | MJ20×1.5-4h6h | 20 | 19.959 | 19.98 | 19.955 | 20 | 19.96 | 19.79 | 19.98 | 19.945 | 20 |
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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