2b thread class right-hand 1.600" overall length 0.880" overall width 28 thread quantity per inch cadmium surface treated angle type unef thread series
2a single mounting facility thread class 0.250" single mounting facility thread length 3.844" overall length 2.250" overall width circular wafer, bushing mount unef single mounting facility thread series
2a thread class right-hand 4.594" overall length 0.593" overall width 32 thread quantity per inch two side mounting holes 0.156 in. dia unc thread series