3a thread class right-hand 0.529" thread length hexagon head style 32 thread quantity per inch screw, captive, hex head, torq-set recess unjf thread series
3a thread class right-hand headless (setscrew) head style 20 thread quantity per inch setscrew, hexagon socket flat point cadmium or chromate fastener surface treated unf thread series
3a thread class right-hand spline extended washer head style 2.434" grip length 24 thread quantity per inch bolt tension nickel alloy 718 unjf thread series
Used on 2350-01-577-0830. 2a thread class right-hand 1.638" thread length pan head style 40 thread quantity per inch zinc screw surface treated unc thread series
Used on f-18 a-d aircraft. 3a thread class right-hand 0.400" thread length dished hexagon head style 28 thread quantity per inch bolt, shoulder - hex head, close tolerance, corrosion resistant steel, up to 1200 degrees f dry film lubed shank per mcair PSI8021 class 15 designated by letter m in part number passivate surface treated unjf thread series
Used on 5419-01-539-7177. right-hand 0.625" thread length pan head style I32 thread quantity per inch quick install thread-forming screw for sheet metal & iron 39428 holds creative unc thread series
