Standard: NF E 27
Available sizes: (M3.5) to M8 (7 sizes)
| Standard Body | Standard Number |
|---|---|
| NF | NF E 27-454 |
| DIN | DIN 315 |
| UNI | UNI 5448(B) |
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| (M3.5) | 0.8 | 15 | 13 | / | 11 | 28 | 6 | 30 |
| (M7) | 2 | 35 | 33 | 1.5 | 28 | 68 | 16 | 70 |
| M3 | 0.6 | 12 | 10 | / | 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.
| 20 |
| 4 |
| 22 |
| M4 | 1 | 18 | 16 | / | 13 | 33 | 8 | 35 |
| M5 | 1.25 | 22 | 20 | / | 15.5 | 40 | 10 | 42 |
| M6 | 1.75 | 28 | 26 | 1.25 | 21 | 52 | 12 | 54 |
| M8 | 2.5 | 39 | 37 | 1.5 | 31 | 76 | 18 | 78 |
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