flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.251" grip length 664 single pounds per square inch shear strength
3a thread class right-hand 0.468" thread length spline extended washer head style 0.562" grip length 28 thread quantity per inch navy special project passivate surface treated unjf thread series
Used on fms - aircraft, hornet f/a-18;aircraft, hornet f/a-18. 3a thread class right-hand 0.406" thread length oval countersunk head style 1.427" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.450" thread length knurled no. 5 head style 40 thread quantity per inch cadmium fastener surface treated unrc thread series
3a thread class right-hand 0.578" thread length dished hexagon head style 1.990" grip length 24 thread quantity per inch aluminum surface treated unjf thread series
2a thread class right-hand 0.150" thread length flat chamfer head style 28 thread quantity per inch 63.0 micro finish on side of head passivate surface treated unf thread series
3a thread class right-hand 1.309" thread length dished hexagon head style 1.678" grip length 12 thread quantity per inch cadmium surface treated unjf thread series
