2b thread class right-hand any acceptable overall width 20 thread quantity per inch cadmium surface treated clamp, angle tie strap type unef thread series
2a single mounting facility thread class 0.437" single mounting facility thread length 3.705" overall length tap, circular, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.437" single mounting facility thread length 3.122" overall length tap, circular, bushing mount unef single mounting facility thread series
2a 1st mounting facility thread class 0.375" 1st mounting facility thread length 8.563" overall length 4.375" overall width 20 2nd mounting facility thread quantity per inch item must comply with requirements of desc production standard no. L03500; for navy nuclear propulsion plant products only tap, circuit selector unc 2nd mounting facility thread series