2a single mounting facility thread class right-hand single mounting facility 0.938" overall length 0.734" overall width 48 single mounting facility thread quantity per inch unc single mounting facility thread series
2b thread class right-hand any acceptable overall length any acceptable overall width 28 thread quantity per inch nickel surface treated straight type w/cable clamp un thread series
2a thread class right-hand 0.969" overall length 0.969" overall width 24 thread quantity per inch nickel surface treated straight type w/flange unef thread series