Shop › Replacement Adjustment Screw and Nut Only, 5/16"-24 threads, Each Image 1 of 1 Replacement Adjustment Screw and Nut Only, 5/16"-24 threads, Each $8.95 Replacement Adjustment Screw and Nut Only, 5/16"-24 threads. Add To Cart Added! Replacement Adjustment Screw and Nut Only, 5/16"-24 threads. C-421-2170-0 You Might Also Like Dual Port Metal Gasket, Stock Style, Each $1.95 Pulley Shim Set $6.95 Schadek Oil Pump Flat Late Cam - 21mm Gears $49.95 Schadek Oil Pump Dish Cam, 26mm or 30mm Gears $59.95 EMPI Single HPMX or IDF Manifold Kit for Type 1 $199.95