COMP Cams Rocker Arm Nut 4601-16; Hi-Tech 3/8 .600 OD Poly Lock, Full Roller

COMP Cams Rocker Arm Nut 4602-16; Magnum 3/8, .612 OD Poly Lock, Roller Rocker

COMP Cams Rocker Arm Nut 4603-16; Magnum 7/16, .675 OD Poly Lock, Roller Tip

COMP Cams Rocker Arm Nut 4630-16; High Energy 7/16 Poly Lock, Full Roller, 16pc

COMP Cams Rocker Arm Nut 4600-16; Poly-Lock .600 OD 7/16 Stud, Full Roller

Comp Cams 4604-16, High Energy Rocker Arm Nut Set, 3/8 in. Poly Lock, 16pcs

COMP Cams Rocker Arm Nut 4631-16; High Energy 3/8 Poly Lock, Full Roller, 16pcs

Elgin Engine Rocker Arm Nut RM-8829S; 7/16-20 .600 in. Poly Lock, 16pcs