Tapping Screws Identification Illustration

This illustration shows the various ways that tapping screws are identified, including: Diameter, Head Size, Length, and Head Type. Included are illustrations for #4 Screws; #6 Screws; #8 Screws; #10 Screws; #12 Screws; and #14 Screws. 

In addition, the illustration below also shows the proper way to measure the length of pan head, oval head, and flat head screws. 

Tapping Screws Identification