flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 85000 single pounds per square inch shear strength item is not csi but has critical features such as heat treatment, surface finish, or material type passivate surface treated
3a thread class right-hand 0.503" thread length dished hexagon head style 0.990" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
2a thread class right-hand 0.200" thread length hexagon head style 40 thread quantity per inch furnished with flat washer, lockwasher passivate surface treated unc thread series
Used on nsn 2320-01-097-0260 hemtt (heavy expanded mobility tactical truck); 2320-01-304-2277 and 2320-01-304-2278 pls(palletized loading system). 3a thread class 24 thread quantity per inch unf thread series