ARP fasteners Head Stud Kit, 12-Point Nut AR9994209 Universal and precision J-form threads rolled

and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others

Part Number: AF2871-1440

Total Size: 395mm (15

Part Number: AF2251-1280

- Engine Coolant Temp Sensor

ARP fasteners Head Stud Kit, 12-Point Nut AR9994209 Universal and precision J-form threads rolledHead Stud Kit, 12 Point Nutfits Nissan RB20DET, RB25DET, RB30ET 1 2" Stud With Twin Cam Head & CA18DET Brand: ARP Part Number: AR9994209 Description: It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all out competition powerplants. Simply stated, there's not a better stud setup on the market today. For openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000 alloy