Standard: NF L 22
Available sizes: M3 to M8 (6 sizes)
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M3 | 4 | 6.85 | 7 | 3.02 | 4 | 3.88 | 3 | 2.9 | 2.4 | 3.06 | 3.82 |
| M4 | 6 | 9.85 | 10 | 5.03 | 6 | 5.88 | 5 |
| 4.5 |
| 4 |
| 5.105 |
| 5.82 |
| M5 | 8 | 12.82 | 13 | 6.03 | 8 | 7.85 | 6 | 6.2 | 5.7 | 6.105 | 7.78 |
| M6 | 12 | 17.82 | 18 | 10.04 | 12 | 11.82 | 10 | 9.9 | 9.4 | 10.13 | 11.73 |
| M7 | 16 | 23.79 | 24 | 14.05 | 16 | 15.82 | 14 | 13.9 | 13.4 | 14.23 | 15.73 |
| M8 | 20 | 29.79 | 30 | 17.05 | 20 | 19.79 | 17 | 17.9 | 17.4 | 17.23 | 19.67 |
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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