3a thread class right-hand 0.225" thread length fillister head style 0.109" hole diameter 32 thread quantity per inch niosh certified to be used with scott (cage 53655) scba pressure-pack models 2 cadmium surface treated unf thread series
Used on m12008000. 3a thread class right-hand 0.750" thread length flush head style 28 thread quantity per inch cadmium surface treated unrc thread series
2a thread class right-hand 1.620" thread length flat chamfer head style 8 thread quantity per inch thread diameter begins at 1.000 inch with taper angle of thread to head 0.004 to 0.006", optional head may be knurled copper surface treated unc thread series
3a thread class right-hand 0.860" thread length bevel-conical head style 24 thread quantity per inch furnished with tapered shank passivate surface treated unjf thread series
3a thread class right-hand 0.475" thread length flat chamfer head style 28 thread quantity per inch head externally relieved, 0.240 TO0.260 in. od unjf thread series
