FASTENER STANDARD
M20
Hexagon Thin Nut — DIN 439 / ISO 4035 / GB/T 6172.1
M20 is listed in the confirmed supply specifications of the products shown below. Dimensions are referenced against DIN 439 / ISO 4035 / GB/T 6172.1; where these standards differ, both values are shown so the correct one can be confirmed before ordering. Packing quantity, stock status and mechanical property class are confirmed in the quotation. Column symbols: P = thread pitch; s = width across flats; e = width across corners; m = nut height; s min = width across flats, minimum; m min = nut height, minimum.
Edition to confirm · Specification| Standard | Status | P (mm) | s (mm) | e (mm) | m (mm) | s min (mm) | m min (mm) |
|---|---|---|---|---|---|---|---|
| DIN 439 | Historical | 2.5 | 30 | 33.53 | 10 | - | - |
| ISO 4035 | Current | 2.5 | 30 | 32.95 | 10 | - | - |
| GB/T 6172.1 | Current | 2.5 | 30 | 32.95 | 10 | - | - |
| ISO 8675 | Current | 2 | 30 | 32.95 | 10 | 29.16 | 9.1 |
Compare before substituting
DIN 439 →ISO 4035GB/T 6172.1ISO 8675DIN 439 / M20 / e: ISO 4035 32.95 · DIN 439 33.53
ISO 8675 / M20 / pitch: ISO 4035 2.5 · ISO 8675 2