ARP Hex Head Black Oxide 5/16″.-18 RH Thread 1000″. UHL, Set of 5 # 651-1000
Bolts, Hex Head, Custom 450, Black Oxide, 5/16 in.-18 RH Thread, 1.000 in. UHL, Set of 5
Fastener Size:5/16-18 in. RH
Underhead Length (in):1.000 in.
Fastener Head Style:Hex head
Fastener Material:Chromoly
Fastener Finish:Black oxide
Fastener Grade:ARP Custom 450
Fastener Yield Strength (psi):180,000 psi
Wrench Diameter:3/8 in.
Washers Included:Yes
Quantity:Sold as a set of 5.
Now you can use premium-quality ARP chromoly bolts to install most anything on a car, boat, or trailer. These specially heat-treated 8740 chromoly fasteners feature a black oxide finish. They are nominally rated at 180,000 psi tensile strength to provide a substantial extra margin of safety over Grade 8 hardware.