flat countersunk head style 0.279" hole diameter 3.437" grip length 32 microinches ra head toshank, thread root, thread flanks, shamk; 63 MICR0inches ra bearing surface, 125 microinches ra other surfaces; alloy steel unjf thread series
3a thread class right-hand 0.169" hole diameter 1.495" grip length 24 thread quantity per inch cetyl alcohol lubrication; not colored unjc thread series
3a thread class right-hand 0.444" thread length hexagon head style 1.865" grip length 28 thread quantity per inch passivate fastener surface treated unf thread series
3a thread class right-hand 0.444" thread length hexagon head style 2.740" grip length 28 thread quantity per inch passivate fastener surface treated unf thread series
3a thread class right-hand 0.506" thread length hexagon head style 0.490" grip length 24 thread quantity per inch passivate fastener surface treated unf thread series
3a thread class right-hand 0.506" thread length hexagon head style 1.490" grip length 24 thread quantity per inch passivate fastener surface treated unf thread series
3a thread class right-hand 0.506" thread length hexagon head style 1.865" grip length 24 thread quantity per inch passivate fastener surface treated unf thread series
3a thread class right-hand 0.506" thread length hexagon head style 2.490" grip length 24 thread quantity per inch passivate fastener surface treated unf thread series
3a thread class right-hand 0.506" thread length hexagon head style 2.615" grip length 24 thread quantity per inch passivate fastener surface treated unf thread series
Used on end item nsn: 4920-01-360-3853. 3a thread class right-hand 1.000" thread length hexagon head style 24 thread quantity per inch cadmium surface treated unjf thread series