2a thread class right-hand 1.250" thread length hexagon head style 20 thread quantity per inch locking feature material plastic epoxy, weapons system essential zinc fastener surface treated unf thread series
2a thread class right-hand 2.938" thread length hexagon head style 8.406" grip length 40 thread quantity per inch navy special project unc thread series
3a thread class right-hand 0.288" thread length hexagon head style 0.052" grip length 32 thread quantity per inch locking feature is plastic polyamide passivate fastener surface treated unf thread series
2a thread class right-hand 1.250" thread length hexagon head style 0.092" hole diameter 13 thread quantity per inch weapon system essential cadmium fastener surface treated unc thread series