DIN 571 (DIN) and NF E 25-607 (NF) are equivalent fastener standards that specify the same or very similar products. Both standards cover 2 fastener types in our database.
DIN 571 (DIN standard) and NF E 25-607 (NF standard) are equivalent standards that define the same fastener geometry and mechanical requirements. Minor differences may exist in tolerances, marking requirements, or referenced test methods, but the products are interchangeable in most applications. Always verify specific project requirements with your engineer.
| Property | DIN 571 | NF E 25-607 |
|---|---|---|
| Standard Body | DIN | NF |
| Product Types | 2 fastener types | |
| Interchangeable? | Yes — equivalent standard | |
| Product | Has Specs |
|---|---|
| Woodscrews-Hexagon Lag Screws - Symbol H | ✓ |
| Hexagon Head Wood Screws | ✓ |
From: Woodscrews-Hexagon Lag Screws - Symbol H — applies to both DIN 571 and NF E 25-607
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 7 | 2 | 13.4 | 11.6 | 20 | 19.16 | 29.16 | 32.9 | 12.5 | 30 |
| 5 | 2.5 | 0.5 | 4.38 | 3.62 | 6 | 5.52 | 9.64 |
Both DIN 571 and NF E 25-607 fasteners are available with various surface treatments. Common options for these standards include:
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.
| 10.8 |
| 4 |
| 10 |
| 6 | 3.5 | 1 | 5.68 | 4.92 | 8 | 7.42 | 12.57 | 14.2 | 5.3 | 13 |
| 7 | 4.5 | 1.2 | 7.95 | 7.05 | 12 | 11.3 | 18.16 | 20.5 | 7.5 | 19 |
| 8 | 6 | 1.6 | 10.75 | 9.25 | 16 | 15.3 | 23.16 | 26.1 | 10 | 24 |
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