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These handy washers are made to protect the
top of holes from galling or collapsing around
studs or bolts. They're ideal for head bolt holes,
mid-motor plates, or any other high-wear area
that requires a washer. Easy to install by just
oversizing hole and pressing in washer. ARP
Insert Washers are fully CNC
machined from premium thru-hardened
8740 stock.