Used on tank,combat,full track. 2a thread class right-hand 0.337" thread length pan head style 20 thread quantity per inch zinc screw surface treated unc thread series
3a thread class right-hand flush countersunk head style 1.495" grip length 24 thread quantity per inch 95000 single pounds per square inch shear strength grit blast top of heads; o-ring, synthetic rubber per mil-r-6855, class 1, 2, and 3, and mil-r-3065, class SB612e, temperature range-70 deg to 225 deg f unjf thread series
3a thread class right-hand flush countersunk head style 0.620" grip length 24 thread quantity per inch 95000 single pounds per square inch shear strength grit blast top of heads; o-ring, synthetic rubber per mil-r-6855, class 1, 2, and 3, and mil-r-3065, class SB612e, temperature range-70 deg to 225 deg f unjf thread series
3a thread class right-hand flush countersunk head style 0.433" grip length 28 thread quantity per inch 125000 single pounds per square inch shear strength passivate surface treated unjf thread series
3a thread class right-hand 0.370" grip length 24 thread quantity per inch 95000 single pounds per square inch shear strength grit blast top of heads unjf thread series
3a thread class right-hand 0.425" thread length dished hexagon head style 0.928" grip length 28 thread quantity per inch aluminum surface treated unc thread series
