2a single mounting facility thread class 0.380" single mounting facility thread length 1.600" overall length circular wafer, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.375" single mounting facility thread length 4.391" overall length 0.938" overall width circular wafer, bushing mount unef single mounting facility thread series
2b thread class right-hand 4.688" overall length 1.781" overall width 40 thread quantity per inch cadmium surface treated rectangular, open back w/top clamp unc thread series