flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.251" grip length 970 single pounds per square inch shear strength cadmium surface treated
3a thread class right-hand 0.444" thread length dished hexagon head style 1.115" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
Used on F-15E. 3a thread class right-hand 1.926" thread length hexagon head style 32 thread quantity per inch passivate screw surface treated drilled hole 0.108 inch min. fromthread end, hole dia.0.070 inch min., made from NAS1802-3-24 unjf thread series
3a thread class right-hand 0.425" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 0.338" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unjf thread series