ARP studs are thread rolled after heat treat, which gives them about 1000% better fatigue strenth than studs threaded prior to heat treat. It costs a lot more to do it this way, but the results are worth the effort.
You won't find a better quality stud on the market from any other source.
Kit contains:
10 studs 10 parallel ground washers 10 compact 12 point nuts 1 pack specially formulated Moly based assembly lubricant