Used on mk 16 mod 0 eod uba. 2a thread class 0.810" thread length pan no. 2 head style 32 thread quantity per inch passivate screw surface treated explosive ordnance disposal tools/equipment unc thread series
3a thread class right-hand 0.650" thread length double chamfer head style 28 thread quantity per inch navy special project straight knurl anodize head surface treated unf thread series
3a thread class right-hand 0.570" thread length knurled no. 1 head style 40 thread quantity per inch passivate fastener surface treated unf thread series
2a thread class right-hand 0.440" thread length flat chamfer head style 24 thread quantity per inch shoulder 0.315 in min, 0.325 in max lg; 0.494 in min, 0.499 in max dia unf thread series
3a thread class right-hand 1.130" grip length 24 thread quantity per inch 125000 single pounds per square inch shear strength red identification color on top of head cadmium surface treated unjf thread series
