COMP Cams Stud Girdle Adj Nut3/8

Designed for ultimate strength and locking force High Energy and Magnum polylocks are best for moderate lift and spring pressure Applications Hi-Tech Polylocks work well in all high end Race applications. The Stud girdle polylocks are precision ground for minimum runout and tapered for extra strength in the locking area. With a 2.000" overall length, this adjusting nut is designed for 3/8" rockers with a stud girdle.