Used on mark 38,model 2. 2a thread class right-hand 0.750" thread length hexagon head style 28 thread quantity per inch hex cap screw (finished hex bolt) passivate surface treated unf thread series
3a thread class right-hand 0.391" thread length dished hexagon head style 0.188" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
Used on mk38 mod2 common bulk item list. 2.500" overall length 28 thread quantity per inch major dia: 1/4 in. item is a stud, fully threaded, 1/4"-28 unf x 2-1/2", 316 stainless steel. unf thread series
Used on tmss-med/edfp. right-hand 2.000" thread length hexagon head style screw is 5/16-18 with hardness rating of rockwell C25-C34 zinc surface treated
Used on a-10 aircraft. 3a thread class right-hand straight pan head style 0.870" grip length 24 thread quantity per inch 22300 double pounds per square inch shear strength nickel surface treated unjf thread series