2a single mounting facility thread class right-hand single mounting facility 1.312" overall length 1.687" overall width unc single mounting facility thread series
2a single mounting facility thread class 0.437" single mounting facility thread length 3.975" overall length item must comply with requirements of defense supply center columbus production standard no. LO3304 tap, circular, bushing mount unef single mounting facility thread series
2a all threaded stud thread class 0.182" all threaded stud thread length 40 all threaded stud thread quantity per inch disc unc all threaded stud thread series