2b thread class right-hand 2.126" overall length 0.969" overall width 40 thread quantity per inch nickel surface treated hood type w/flange unc thread series
2a single mounting facility thread class 0.250" single mounting facility thread length 1.338" overall length tap, circular, bushing mount unf single mounting facility thread series
2a single mounting facility thread class 0.410" single mounting facility thread length 3.480" overall length tap, circular, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.410" single mounting facility thread length 2.950" overall length tap, circular, bushing mount unef single mounting facility thread series
2a thread class right-hand 1.625" overall length 1.798" overall width 10 thread quantity per inch socket contacts 20-20 in lieu of 20-22 double stub thread series