2b second mounting facility thread class right-hand second mounting facility 3.250" overall length 3.090" overall width 32 second mounting facility thread quantity per inch unc second mounting facility thread series
2b single mounting facility thread class 3.875" overall length 20 single mounting facility thread quantity per inch round threaded hole shaft tap, circuit selector unc single mounting facility thread series
0.250" single mounting facility thread length 1.624" overall length 1.375" overall width 32 single mounting facility thread quantity per inch circular wafer, bushing mount uns single mounting facility thread series
2a single mounting facility thread class 0.359" single mounting facility thread length 1.906" overall length 1.297" overall width circular wafer, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.359" single mounting facility thread length 1.906" overall length 1.297" overall width circular wafer, bushing mount unef single mounting facility thread series