2b thread class right-hand 1.406" overall length 1.188" overall width 20 thread quantity per inch cadmium surface treated straight type w/cable clamp unef thread series
2a single mounting facility thread class 0.469" single mounting facility thread length 3.844" overall length 32 single mounting facility thread quantity per inch tap, circular, bushing mount uns single mounting facility thread series
2a single mounting facility thread class 0.469" single mounting facility thread length 2.031" overall length 32 single mounting facility thread quantity per inch tap, circular, bushing mount uns single mounting facility thread series