2a single mounting facility thread class 0.417" single mounting facility thread length 3.057" overall length item must comply with rqmt of desc production std no. L01118 tap, circular, bushing mount unef single mounting facility thread series
2b single mounting facility thread class 4.188" overall length 1.750" overall width 32 single mounting facility thread quantity per inch square wafer, panel mount unc single mounting facility thread series