Bare Knuckle Performance, ARP upper shock mount bolts

12-point black oxide chromoly. - These top bolts feature 3/8-16" internal threads, allowing you to use the fastener of your choice inside your fender/strut - High Performance specialists know ARP bolts are a great way to keep heads & crankshaft components of extreme performance engines together. So, these 12-point ARP bolts are not the cheap way to install your shocks, but if you want the best these are it - OEM replacement reference 54309-87