IN STOCK! 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 or sizes not available online. For other oversize amounts please see HERE Don't forget to use a good cutting lubricant
