3a thread class right-hand 0.359" thread length knurled no. 4 head style 28 thread quantity per inch passivate fastener surface treated unf thread series
2a thread class right-hand 0.370" thread length flat chamfer head style 32 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.625" thread length flat chamfer head style 16 thread quantity per inch nylon pellet type element in threads oxide surface treated unc thread series
3a thread class right-hand 0.425" thread length dished hexagon head style 0.865" grip length 28 thread quantity per inch passivate surface treated unjf thread series
2a thread class right-hand 1.190" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated unc thread series
2a thread class right-hand 1.000" thread length hexagon head style 16 thread quantity per inch optional material grade 8 per sae J429 unc thread series
2a thread class right-hand 0.620" thread length dished hexagon head style 3.120" grip length 24 thread quantity per inch passivate surface treated unf thread series