ARP Rocker Arm Nut - 3/8-24 in Thread - 0.600 in Shank Diameter - 1.200 in Long - Chromoly - Black Oxide - Aluminum Rockers - Set of 16 R03P015M Provides extra protection to spark

Provides extra protection to spark plug wires

2001 - 2006 BMW M3

100% machined surface

2005-2014 Nissan Pathfinder

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ARP Rocker Arm Nut - 3/8-24 in Thread - 0.600 in Shank Diameter - 1.200 in Long - Chromoly - Black Oxide - Aluminum Rockers - Set of 16 R03P015M Provides extra protection to sparkA rocker arm adjuster that doesn't require special tools and won't work loose. Threads on the heat treated Perma Loc Adjusters are machined exactly perpendicular to the adjuster bottom. a set screw is also machined flush on the bottom. All of these features help eliminate setting valve lash on a regular basis. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Rocker Arm Nut 3 8 24 in Thread