Used on truck, cargo, dropside. 2a thread class right-hand 0.750" thread length hexagon extended washer head style 13 thread quantity per inch phosphate surface treated unc thread series
2a thread class right-hand 1.000" thread length hexagon head style 16 thread quantity per inch dri-loc 17018 (locktite corp) on all but 1 1/2 to 2 threads phosphate surface treated unc thread series
2a thread class right-hand 1.000" thread length hexagon head style 16 thread quantity per inch dri-lco 17018 (locktite corp) on all but 1 1/2 to 2 threads phosphate surface treated unc thread series
3a thread class right-hand 0.842" thread length hexagon head style 1.812" grip length 20 thread quantity per inch passivate surface treated unf thread series