2a all threaded stud thread class 0.187" all threaded stud thread length 40 all threaded stud thread quantity per inch disc unc all threaded stud thread series
3a single pressure connection thread class 38.127" overall length 20 single pressure connection thread quantity per inch cylindrical unf single pressure connection thread series
2a single mounting facility thread class 0.250" single mounting facility thread length 2.060" overall length 1.050" overall width circular wafer, bushing mount unef single mounting facility thread series
2a single mounting facility thread class 0.370" single mounting facility thread length 1.999" overall length 1.000" overall width circular wafer, bushing mount unef single mounting facility thread series