2b single mounting facility thread class 0.250" single mounting facility thread length 8.344" overall length 2.750" overall width 32 single mounting facility thread quantity per inch tap, square frame unc single mounting facility thread series
2a single mounting facility thread class 0.375" single mounting facility thread length 2.656" overall length 1.250" overall width circular wafer, bushing mount unef single mounting facility thread series
2a single threaded bushing thread class 0.437" single threaded bushing thread length 2.781" overall length 24 single threaded bushing thread quantity per inch 2.000 in. lg wire leads cylindrical unf single threaded bushing thread series