Roll-Line Stainless Steel Adjustment King Pin Locking Screws (Set of 4)

Roll-Line Stainless Steel Adjustment King Pin Locking Screws (Set of 4). Also known as "Keeper Screws" these screws lock into the bottom of the king pin and prevent the skate from coming apart. 

This screw is only compatible with Roll-Line plates (both click action and non-click action plates). It has a 4mm allen head socket (only tighten with a 4mm allen wrench). These locking screws must be kept 100% tight while skating. 

Troubleshooting:

To loosen trucks you must loosen the click action nut before loosening the king pin screw. If the nut is too loose it will run into the king pin nut. If this happens and you still want looser trucks you must change to a softer cushion rather than over loosening your trucks.