T&D Machine Rocker Arm Jam Nut - 12Pt. 7/16"-20 Thread

Product Descripton:

T&D manufactures rocker arm systems for over 400 cylinder heads and its products have established a reputation for the highest levels of quality, performance and long-term reliability. The company works closely with leading engine builders to maintain its position at the forefront of technology. Add to this the fact that —unlike some competitors— each and every rocker system is manufactured in-house to rigorous standards, and has customer service that’s second to none…it’s easy to see why T&D is the choice of racers in all forms of motorsports.