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

Elgin Engine Rocker Arm Nut RM-8828S; Low Profile 3/8-24 Poly Lock, 16pcs

3/8" Polylock Rocker Arm Nut Set (Suits: Stainless Rockers)

Set of 16 Chevy 3/8 24 Tread Roller Rocker Arm Adjuster Nuts

Elgin Rocker Arm Nut Set RM-8823S; 3/8 x .550 x 1 in. Poly Lock for Stamped

EPChunMi 16PCS Rocker Arm Nuts 3/8"-24 .550"x1.000" Poly Lock for Roller Rockers

Proform 66935 Rocker Arm Poly Locks 3/8"-24-Thread Poly-Lock

Speedmaster Poly Sure-Lock Rocker Arm Nuts 7/16 in.