Description
Tapping adaptors plays an integral role in machining and tooling performance. Choosing the exact tapping adaptor enhances the precision and accuracy of the finished product. The mismatch between the tap shank and the tapping adaptor results in creating more tolerances thus reducing the product output.
Tap Shank Dimensions chart helps you in selecting the Exact tapping adaptor. Find the below chart for selecting the tapping adaptor. The tap shank dimension chart is prepared in accordance with ISO/DIN/JIS standard taps.
| Dimension Dia. x Square | ISO 529 | DIN 352 | DIN 371 | DIN 374 | DIN 376 | JIS STANDARDS |
|---|---|---|---|---|---|---|
| 2.8 x 2.1 | – | – | M1.8 & M2 | – | – | – |
| 3.15 x 2.5 | M3 & M4 | – | – | – | – | |
| 3.5 x 2.7 | – | M3 | M3 | M5 | M5 | – |
| 3.55 x 2.8 | M3.5 & M4.5 | – | – | |||
| 4×3 | M4 | M3.5 | – | – | M3 & M3.5 | |
| 4 x 3.15 | M4 & M5 | |||||
| 4.5 x 3.4 | – | M4 | M4 | M6 | M6 | – |
| 4.5 x 3.55 | M6 | – | – | – | – | |
| 5×4 | M5 | – | – | – | – | M4 & M4.5 |
| 5.5 x 4.5 | – | – | – | – | – | M5 |
| 6 x 4.5 | – | – | – | – | – | M5 |
| 6 x 4.9 | – | M5 , M6 & M8 | M5 & M6 | M8 | M8 | |
| 6.2 x 5 | – | – | – | – | – | M7 & M8 |
| 6.3 x 5 | M6 & M8 | – | – | – | – | |
| 7 x 5.5 | – | M10 | – | M10 | M10 | M9 & M10 |
| 8 x 6.2 | – | – | M8 | – | – | M11 |
| 8 x 6.3 | M8 & M10 | – | – | – | – | |
| 8.5 x 6.5 | – | – | – | – | – | M12 |
| 9×7 | – | M12 | – | M12 | M12 | – |
| 9 x 7.1 | M12 | – | – | – | – | – |
| 10 x 8 | M10 | – | M10 | – | – | |
| 10.5 x 8 | – | – | – | – | – | M14 |
| 11 x 9 | – | M14 | – | M14 | M14 | – |
| 11.2 x 9 | M14 | – | – | – | – | – |
| 12 x 9 | – | M16 | – | M16 | M16 | – |
| 12.5 x 10 | M16 | – | – | – | – | M16 |
| 13 x 10 | – | – | – | – | – | M17 |
| 14 x 11 | M18 | – | M18 | M18 | M18 | |
| 14 x 11.2 | M18 & M20 | – | – | – | – | – |
| 15 x 12 | – | – | – | – | – | M20 |
| 16 x 12 | – | M20 | – | M20 | M20 | – |
| 16 x 12.5 | M22 | – | – | – | – | – |
| 17 x 13 | – | – | – | – | – | M22 |
| 18 x 14 | M24 | – | – | – | – | – |
| 18 x 14.5 | – | M22 & M24 | – | M22 & M24 | M22 & M24 | – |
| 19 x 15 | – | – | – | – | – | M24 |
| 20 x 15 | – | – | – | – | – | M27 |
| 20 x 16 | M27 & M30 | M27 | – | M27 | M27 | – |
| 22 x 18 | – | M30 | – | M30 | M30 | – |
| 22.4 x 18 | M33 | – | – | – | – | – |
| 23 x 17 | – | – | – | M30 | ||
| 25 x 20 | M36 | M33 | – | M33 | M33 | – |
| 28 x 22 | – | M36 | – | M36 | M36 | – |
| 28 x 22.4 | M39 & M42 | – | – | – | – | – |
| 31.5 x 25 | M45 & M48 | – | – | – | – | – |
| 32 x 24 | – | M39 & M42 | – | M39 & M42 | M39 & M42 | – |
| 36 x 29 | – | M45 & M48 | – | M45 & M48 | M45 & M48 | – |
