2b thread class right-hand 3.214" overall length 1.188" overall width 40 thread quantity per inch anodize surface treated hood, side opening w/clamp unc thread series
2a single mounting facility thread class 0.250" single mounting facility thread length 2.374" overall length 1.422" overall width circular wafer, bushing mount unef single mounting facility thread series
2b single mounting facility thread class 3.781" overall length 2.406" overall width 24 single mounting facility thread quantity per inch tap, circuit selector unc single mounting facility thread series
2a single mounting facility thread class 0.469" single mounting facility thread length 3.125" overall length 32 single mounting facility thread quantity per inch tap, circular, bushing mount uns single mounting facility thread series