2a thread class right-hand modified pan head style 32 thread quantity per inch passivated surface treatment of screw passivate bearing surface of head surface treated unf thread series
2a thread class right-hand 0.370" thread length knurled no. 4 head style 32 thread quantity per inch stright knurl passivate surface treated unc thread series
2a thread class right-hand 0.380" thread length knurled no. 1 head style 32 thread quantity per inch retainer is stainless steel passivate spring surface treated unc thread series
3a thread class right-hand 1.000" thread length knurled no. 5 head style 40 thread quantity per inch navy special project passivate fastener surface treated unc thread series
2a thread class right-hand 0.240" thread length pan no. 2 head style 32 thread quantity per inch navy special project passivate surface treated unc thread series