Standard: NF L 22
Available sizes: M3 to M8 (6 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| M3 | 0.7 | 6.85 | 2.5 | 4 | 3.88 | 2.375 | 7 | 2.625 |
| M4 | 1 | 9.78 | 3.5 | 6 | 5.88 | 3.35 | 10 | 3.65 |
| M5 | 1.25 | 12.73 | 4.5 | 8 |
| 7.85 |
| 4.35 |
| 13 |
| 4.65 |
| M6 | 1.5 | 18.67 | 6 | 12 | 11.82 | 5.85 | 19 | 6.15 |
| M7 | 1.5 | 23.67 | 7.5 | 16 | 15.82 | 7.32 | 24 | 7.68 |
| M8 | 1.5 | 29.67 | 9 | 20 | 19.79 | 8.82 | 30 | 9.18 |
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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