3a thread class right-hand 0.297" thread length knurled no. 3 head style 32 thread quantity per inch knurled portion of fastner internally threaded D1a. 0.250, 28 threads per inch unf, 3b also contains screw hold-out spring passivate surface treated unf thread series
2a thread class right-hand 0.360" thread length knurled no. 4 head style 32 thread quantity per inch straight knurl anodize head surface treated unf thread series
3a thread class right-hand 0.360" thread length hexagon extended washer head style 28 thread quantity per inch passivate surface treated unf thread series
Used on apache helicopter. 2a thread class right-hand 0.370" thread length flat chamfer head style 28 thread quantity per inch passivate surface treated unf thread series
2a thread class right-hand 0.312" thread length hexagon head style 32 thread quantity per inch furnish with cone type point with 120 degree radius cadmium surface treated unf thread series
2a thread class right-hand 0.265" thread length pan no. 2 head style 32 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.250" thread length flat countersunk head style 32 thread quantity per inch navy special project anodize stand-off surface treated unc thread series
2a thread class right-hand 0.203" thread length flat countersunk head style 32 thread quantity per inch with double lead cadmium surface treated unc thread series
3a thread class right-hand 0.250" thread length flat countersunk head style 32 thread quantity per inch anodize fastener surface treated unc thread series
3a thread class right-hand 0.375" thread length knurled no. 4 head style 32 thread quantity per inch straight knurl anodize head surface treated unf thread series
3a thread class right-hand 0.120" thread length flat chamfer head style 32 thread quantity per inch length of screw assy.after mounting 0.759min anodize head surface treated unc thread series
2a thread class right-hand 0.102" thread length flat chamfer head style 32 thread quantity per inch furnished with one o-ring anodize stand-off surface treated unc thread series
3a thread class right-hand 0.362" thread length flat chamfer head style 32 thread quantity per inch head is knurled verticaly anodize head surface treated unf thread series
3a thread class right-hand 0.610" thread length flat chamfer head style 32 thread quantity per inch head knurled passivate surface treated unf thread series
3a thread class right-hand 0.312" thread length hexagon head style 32 thread quantity per inch internal threads in sleeve section; 0.250-28 unf-2b passivate surface treated unf thread series
