1/2" UNF NUT .958" HEAD 17mm 2 PACK 1/2"-20 12 POINT HEAD 8740 Aeroflow - AF 34-32-0011-

These universal 12-point nuts are manufactured from aircraft quality 8740 high tensile strength chromoly steel and cold-forged to ensure molecular integrity within the nuts. They are coated in a black oxide finish for protection and long-lasting durability. They can be used in almost any application on your vehicle in conjunction with studs, bolts and washers. Available in imperial or metric threads with various outside diameters and spanner sizes.