2a all threaded stud thread class 0.480" all threaded stud thread length 32 all threaded stud thread quantity per inch disc unf all threaded stud thread series
2a single mounting facility thread class 0.437" single mounting facility thread length 4.667" overall length tap, circular, bushing mount unef single mounting facility thread series
2b single mounting facility thread class 2.750" overall width 32 single mounting facility thread quantity per inch tap, square frame unc single mounting facility thread series