Aeroflow 12-Point Nuts, Chrome Moly Black Oxide, 10-Pack - AF34-32-00111 2" UNF NUT . 958" HEAD 17mm 1 2" 20 Thread, . 958" O. D, 17mm Socket Part Number: AF34 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