3a thread class right-hand 0.488" thread length double hexagon head style 0.375" grip length 24 thread quantity per inch grip to head radius is 0.31min/0.41max. diameter of surface under head is 0.500. unjf thread series
Used on c-17a globemaster iii. 3a thread class right-hand crown countersunk less than 135 degrees head style 0.688" grip length 24 thread quantity per inch pin-rivet, threaded-100 deg fl crown rivet head unjf thread series
Used on 2350-01-390-4683. 2a thread class right-hand 0.500" thread length hexagon head style 28 thread quantity per inch screw cap hex (finished hex bolt) passivate surface treated unf thread series
