Incision Kingpin Shoulder Screws (4)

Swapped these in on my SCX10II Rockjock and the slop in the steering is basically gone, that one-piece shoulder screw design makes a noticeable difference. Took about ten minutes to install and they've held up through a couple rocky runs without loosening.

Finally a one-piece design that actually stays put — no more losing the tiny brass bushing mid-trail. These shoulder screws dropped right into my SCX10II with zero fuss.

The machining on these shoulder screws is clean and they fit perfectly into the SCX10II axles without any slop. Only wish they came with a little thread locker pre-applied to save a step during install.