ARP 12 Point Cylinder Head Stud Kit for 3.5L EcoBoost Engines.
This 12 Point Cylinder Head Stud Kit from ARP is designed and engineered for fitment on your 3.5L EcoBoost engine. The ARP2000 cylinder head studs are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining. This ARP2000 kit comes complete with 12 Point nuts and hardened parallel washers for an even load distribution and accurate torque readings. 
ARP 12 Point Cylinder Head Stud Kit (153-4303) Specifications:
Fastener Style: Stud
Undercut Stud: Yes
Head Style: 12 Point
Fastener Material: ARP2000
Fastener Finish: Black Oxide
Washers Included: Yes
Fastener Yield Strength (psi): 220,000 psi
Application:
- 2011-2017 3.5L EcoBoost F-150