New 3/8" Screw In Rocker Arm Studs Shouldered Style Chevy sb 400 350 327 305 283

EPChunMi 2PCS Rocker Arm Nuts 3/8"-24 .550"x1.000" Poly Lock for Roller Rockers

Rocker Arm Nuts Chevy 350 400 Buick Ford Oldsmobile Pontiac Set of 16 3/8" 24

EPChunMi Poly Locks for Roller Arms Fits most aluminum Rocker Arms 3/8 Stud Kit

EPChunMi Rocker Arm Nut For 3/8"-24 in Thread Steel Black Oxide Poly Lock (16)

PRW Rocker Arm Nuts 1200340-01;

PRW Rocker Arm Nuts 1200246-01;

PRW Rocker Arm Nuts 1200247-01;