2a thread class right-hand flat chamfer head style 32 thread quantity per inch navy special project shoulder between head passivate surface treated unc thread series
Used on 1005-01-182-7599, ah-64a. use mil-s-22473, grade c locktite in accordance with 7-HP0150045; torque to 8.50 2 places; reason:to prevent barrel support turning loose
Used on aircraft eagle f-15;low altitute navigation&targeting. 2a thread class right-hand headless (setscrew) head style 32 thread quantity per inch unc thread series