ROLL-LINE Adjustable Nut Locking Screw (4 Screw)
Roll-Line 304 Stainless Steel Adjustment King Pin Locking Screws (Set of 4)
Works for both Roll-Line Click Action and NON-Click Action Systems
Has 4mm Allen Head Socket for 4mm Allen Wrench Adjustment.
These Roll-Line Adjustment King Pin Locking Screws must be kept 100% tight. This is for your safety.
These Roll-Line Adjustment King Pin Locking Screws are also called “Keeper Screws”, which keep the Skate from coming Apart.