ARP Chromoly 1/2-13 in Thread Bolt - 3.250 in Long - 9/16 in Hex Head - Black Oxide (Set of 5) BUTBB1156901 100 in Oval Port

100 in Oval Port

Raised bottom

Requires 65301 (1 Hex) or 65302 (22MM Hex) Installation Tool

The outer sleeve that surrounds the conductor assembly is just as impressive

ARP Chromoly 1/2-13 in Thread Bolt - 3.250 in Long - 9/16 in Hex Head - Black Oxide (Set of 5) BUTBB1156901 100 in Oval PortProduct Description: Bolt 1 2 13 in Thread 3. 250 in Long 9 16 in Hex Head Chromoly Black Oxide Universal Set of 5 ARP is the fastener of champions. They say that to be successful you must identify a need and satisfy it. Back in 1968 racing enthusiast Gary Holzapfel saw that many of his friendsa broken engines were caused by fastener failure. At the time, there were no commercially available studs and bolts up to the challenge. So Holzapfel called