right-hand helicoil helicoil tap 42187-06 for internal thread; minor diameter 0.1435 min - 0.1503 max; tap major diameter 0.1733 max; thread pitch 0.0250 coil
3a thread class right-hand 0.375" thread length dished hexagon head style 2.625" grip length 24 thread quantity per inch cadmium surface treated unf thread series
Used on f/a 18 hornet. 3a thread class right-hand spline extended washer head style 0.8750" grip length 28 thread quantity per inch navy special project bolt has drilled head unf thread series
Used on f/a 18 hornet. 3a thread class right-hand spline extended washer head style 0.375" grip length 28 thread quantity per inch navy special project bolt has drilled head unf thread series