Used on 2320-01-304-2277 and 2320-01-304-2278 pls (palletized loading system).. hexagon extended washer head style 32 threads per inch zinc surface treated
2a thread class right-hand 0.531" thread length dee head style 1.281" grip length 18 thread quantity per inch 0.062 in. wide slot, 0.531 in. deep on threaded end unc thread series
3a thread class right-hand 0.302" thread length fillister head style 0.044" hole diameter 32 thread quantity per inch phosphate screw surface treated unf thread series