2a single mounting facility thread class 0.790" overall length 0.670" overall width 40 single mounting facility thread quantity per inch unc single mounting facility thread series
2a mounting facility bushing thread class 16 mounting facility bushing thread quantity per inch covering of leads black unf mounting facility bushing thread series
2a single mounting facility thread class 0.375" single mounting facility thread length 1.438" overall length 1.250" overall width circular wafer, bushing mount unef single mounting facility thread series
2b single mounting facility thread class 4.000" overall length 1.230" overall width 32 single mounting facility thread quantity per inch unc single mounting facility thread series
2b single mounting facility thread class 3.031" overall length 2.406" overall width 24 single mounting facility thread quantity per inch tap, circuit selector unc single mounting facility thread series