Drilled hex nut, 1/2-20 LH threadNAS509L8 - NAS509 Drilled Hex NutsSKU: NAS509L8$1.00PriceThread Size1/2-20 LHFinish4130 Alloy SteelDrill OptionCadmium Plated Type II Class 2Quantity*Add to CartSpecificationsNAS509L8 AMS-S-6758Cross ReferencesNAS509L8Technical DetailsL8ApplicationsDrilled Left Hand https://cdn.hasaerosupply.com/img/NAS509L8.jpg