ARP 7/16"-14 X 4.500 12pt 1/2 wrenching black oxide bolts (645-4500) mercedes-benz-e-class-3rd-gen Valve Angle: 20°

Valve Angle: 20°

High Performance / Gas Nitrided

Part Number: AU8191

Part Number: AF37-2015

UPC: 611500585050

ARP 7/16"-14 X 4.500 12pt 1/2 wrenching black oxide bolts (645-4500) mercedes-benz-e-class-3rd-gen Valve Angle: 20°ARP 7 16" 14 X 4. 500 12pt 1 2 wrenching black oxide bolts (645 4500) ARP Chromoly Bolts 645 4500 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're nominally rated at 180,000 psi tensile strength to provide a substantial extra margin of safety over Grade 8 hardware. The bolts are available in a wide range of