Oversize Taps for Galvanizing (HDG)
Hot Dipped Galvanized (HDG) Oversized Plug Taps*
Overtapping Guidelines for Nuts and Interior Threads
| Nominal Nut Size (inches) and Pitch | Diametrical Allowance (inches) |
|---|---|
| 0.250-20 | 0.016 |
| 0.312-18 | 0.017 |
| 0.375-16 | 0.017 |
| 0.437-14 | 0.018 |
| 0.500-13 | 0.018 |
| 0.562-12 | 0.020 |
| 0.625-11 | 0.020 |
| 0.750-10 | 0.022 |
| 0.875-9 | 0.022 |
| 1.000-8 | 0.022 |
| 1.125-8 | 0.024 |
| 1.125-7 | 0.024 |
| 1.250-8 | 0.024 |
| 1.250-7 | 0.024 |
| 1.375-8 | 0.027 |
| 1.375-6 | 0.027 |
| 1.500-8 | 0.027 |
| 1.500-6 | 0.027 |
| 1.750-5 | 0.050 |
| 2.000-4.5 | 0.050 |
| 2.250-4.5 | 0.050 |
| 2.500-4.5 | 0.050 |
| 2.750-4 | 0.050 |
| 3.000-4 | 0.050 |
| 3.250-4 | 0.050 |
| 3.500-4 | 0.050 |
| 3.750-4 | 0.050 |
| 3.750-4 | 0.050 |
| 4.000-4 | 0.050 |
*These sizes are merely suggestions or guidelines from the AISC (American Institute of Steel Construction)
We can also supply many other variations of oversized amounts. Please contact us for a custom quote.
Don't forget to use a good cutting lubricant
