2a single mounting facility thread class 1.172" overall length 0.734" overall width 48 single mounting facility thread quantity per inch unc single mounting facility thread series
2a single mounting facility thread class 0.312" single mounting facility thread length 2.920" overall length 0.990" overall width circular wafer, bushing mount unef single mounting facility thread series
2b single pressure connection thread class 0.438" single connection inside diameter 4.000" overall length 20 single pressure connection thread quantity per inch cylindrical unf single pressure connection thread series
2b single mounting facility thread class 1.406" overall length 1.188" overall width 32 single mounting facility thread quantity per inch unc single mounting facility thread series