2b power takeoff facility hole thread class right-hand power takeoff facility hole 20 power takeoff facility hole thread quantity per inch unef power takeoff facility hole thread series
2a mounting facility bushing thread class 16 mounting facility bushing thread quantity per inch covering of leads black unf mounting facility bushing thread series
2a mounting facility stud thread class 40 mounting facility stud thread quantity per inch 7/32 in. lg pin mounted in hole of plate unc mounting facility stud thread series