17mm Finnisher Serrated / Magnetic Wheel Nut, Blue made by JConcepts
These high precision wheel nuts are flanged and knurled for locking security and feature a closed end to protect from dirt and debris build-up in the axle or hub. In addition, the new wheel nut includes a set screw to allow a magnetic wrench such as JC #2891-1 to attract each other for quick changes and stops.
It is recommended to add a small amount of CA glue to the set screw and install from the inside of the nut. Position set screw so it touches the magnet inside the wrench and has holding power. Allow the CA on the set screw to cure in that position before use.