Used on C-17. 3a thread class right-hand 0.592" thread length spline extended washer head style 0.553" grip length 28 thread quantity per inch passivate surface treated unjf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.219" grip length 112000 single pounds per square inch shear strength single action fastener installed with a single action tool aluminum mechanical lock surface treated
3a thread class right-hand 0.338" thread length pan no. 2 head style 1.115" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.188" thread length bevel-conical head style 0.070" hole diameter 20 thread quantity per inch cadmium surface treated unjf thread series
