FASTENER STANDARD
M20
Hexagon Regular Nut (Style 1) — DIN 934 / ISO 4032 / GB/T 6170
M20 is listed in the confirmed supply specifications of the products shown below. Dimensions are referenced against DIN 934 / ISO 4032 / GB/T 6170; 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; m min = nut height, minimum; s min = width across flats, minimum.
Edition to confirm · Specification| Standard | Status | P (mm) | s (mm) | e (mm) | m (mm) | m min (mm) | s min (mm) |
|---|---|---|---|---|---|---|---|
| DIN 934 | Historical | 2.5 | 30 | 33.53 | 16 | - | - |
| ISO 4032 | Current | 2.5 | 30 | 32.95 | 18 | - | - |
| GB/T 6170 | Current | 2.5 | 30 | 32.95 | 18 | - | - |
| ISO 4033 | Current | 2.5 | 30 | 32.95 | 20.3 | 19 | - |
| ISO 4034 | Historical | 2.5 | 30 | 32.95 | 19 | 16.9 | 29.16 |
Compare before substituting
DIN 934 →ISO 4032GB/T 6170ISO 4033ISO 4034DIN 934 / M20 / e: ISO 4032 32.95 · DIN 934 33.53
DIN 934 / M20 / m: ISO 4032 18 · DIN 934 16
ISO 4033 / M20 / m: ISO 4032 18 · ISO 4033 20.3
ISO 4034 / M20 / m: ISO 4032 18 · ISO 4034 19
