2a single mounting facility thread class 0.437" single mounting facility thread length 1.975" overall length external jumper from section one to section two tap, circular, bushing mount unef single mounting facility thread series
2b thread class right-hand 1.125" overall length any acceptable overall width 18 thread quantity per inch nickel surface treated straight type w/cable clamp unef thread series
2a single mounting facility thread class 0.375" single mounting facility thread length 2.649" overall length 1.281" overall width circular wafer, bushing mount unef single mounting facility thread series