2a thread class right-hand 0.625" overall length 1.094" overall width 20 thread quantity per inch cadmium surface treated box/wall mount external thread unef thread series
2a thread class right-hand 1.344" overall length 1.781" overall width 18 thread quantity per inch cadmium surface treated box/wall mount external thread unef thread series
2a thread class right-hand 1.291" overall length 1.291" overall width 20 thread quantity per inch cadmium surface treated hood, top opening unef thread series