Standard: NF E 25
Available sizes: (M3.5) to M5 (7 sizes)
| Standard Body | Standard Number |
|---|---|
| EN | EN 24014 |
| GB | GB /T 5782 |
| IS | IS 1364-1 |
| NF | NF E 25-112 |
| DIN | DIN EN ISO 4014 |
| ISO | ISO 4014 |
| UNI | UNI 5737 |
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (M3.5) | 1.5 | 6.58 | 6.4 | 10 | 9.78 | 26 | 32 | 17.77 | 17.59 | 45 | 9.64 |
| M1.6 | 0.4 | 1.525 | 1.4 | 2 | 1.86 | 10 | 16 | 4.32 |
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.
| 4.18 |
| 29 |
| 1.75 |
| M2 | 0.5 | 2.125 | 2 | 3 | 2.86 | 12 | 18 | 6.01 | 5.88 | 31 | 2.75 |
| M2.5 | 0.7 | 2.925 | 2.8 | 4 | 3.82 | 14 | 20 | 7.66 | 7.5 | 33 | 3.7 |
| M3 | 1 | 4.15 | 4 | 6 | 5.82 | 18 | 24 | 11.05 | 10.89 | 37 | 5.7 |
| M4 | 2 | 8.98 | 8.8 | 14 | 13.73 | 34 | 40 | 23.36 | 22.78 | 53 | 13.57 |
| M5 | 2 | 10.18 | 10 | 16 | 15.73 | 38 | 44 | 26.75 | 26.17 | 57 | 15.57 |
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