1.1 This practice covers bolt and stud bolt lengths, quantities, and thread series for pipe to pipe and pipe to valve flanged joints (Note 1) in the nominal pipe size ranges of ½ through 48-in. (12.7 through 1219-mm) diameter and pressure range This practice covers bolt and stud bolt lengths, quantities, and thread series for pipe to pipe and pipe to valve flanged joints. This specification presents tables of bolting lengths for different steel flanged joints.