Used on f-15s acft. 2a thread class right-hand 0.402" thread length flat countersunk head style 56 thread quantity per inch passivate screw surface treated the oxide treatment must be black unc thread series
3a thread class right-hand 0.620" grip length 4010 double pounds per square inch shear strength hi-lok pin, protruding tension head a-286 high temperature alloy, 1/6 in. grip variation passivate surface treated unjc thread series
Used on coast guard hu-25 aircraft. 2a thread class right-hand 0.444" thread length hexagon head style 28 thread quantity per inch this item includes a cotter pin hole drilled 0.19" from the thread end 0.076" in diameter cadmium surface treated unf thread series
2a thread class right-hand 0.102" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated magnetic permeability shall not exceed 2.0 after fabrication unc thread series
3a thread class right-hand 0.403" thread length flat countersunk head style 0.553" grip length 28 thread quantity per inch cadmium surface treated unjf thread series
Used on coast guard hh-65a helicopter. 3a thread class right-hand 0.500" thread length bevel-conical head style 28 thread quantity per inch unjf thread series
Used on f-15s acft. 2a thread class right-hand 0.220" thread length hexagon head style 20 thread quantity per inch screw, captive material is condition code a cold finish unc thread series
Used on f15s acft. 3a thread class right-hand 0.310" thread length hexagon head style 40 thread quantity per inch screw, machine passivate surface treated unc thread series
3a thread class right-hand 0.280" thread length flat chamfer head style 32 thread quantity per inch navy special project passivate surface treated unrf thread series
3a thread class right-hand 0.175" thread length flat chamfer head style 32 thread quantity per inch shank 0.125 to 0.135 inch dia, shank 0.450 inch lg passivate surface treated unrf thread series
