Jeep 4.0L Inline 6 Flywheel Bolt Kit by ARP These Pro series flywheel bolts from ARP give you all that you need to bolt in your flywheel with confidence. They\’re much stronger than OEM hardware, are forged from aerospace alloy, and are heat-treated prior to thread rolling and machining. These bolts feature an exclusive, flat 12-point head design and a larger-than-stock shank diameter for increased strength and improved flywheel register. Features Flat 12-point head design Larger-than-stock shank diameter Thread Size:1/2 in.-20 Underhead Length (in.):0.875 in. Washer Included:No Head Style:12-point Fastener Finish:Black oxide Fastener Material:Chromoly Benefits Increased strength and improved flywheel register Applications 1987-2001 Jeep Cherokee 1987-1992 Jeep Comanche 1993-2004 Jeep Grand Cherokee 1987-1990 Jeep Wagoneer 1991-1995, 1997-2006 Jeep Wrangler What\’s In The Box? 6 – Flywheel Bolts References Installation Instructions Warranty Manufacturers Standard Warranty