Tap Chart UNC/UNF Threads - provides tap sizes, drill sizes, pitch, (threads per inch) basic major diameter, basic effective diameter, basic minor diameter of external threads, and basic minor diameter of internal threads for UNC/UNF threads (original) (raw)

Tap size

NF/NC UNF/UNC

Threads per inch

Basic major dia (inches)

Basic effective dia (inches)

Basic minor dia of ext. threads (inches)

Basic minor dia of int. threads (inches)

Drill size