Unslotted Knurled Head Spin Clips:
This design combines the advantages of a push-in
fastener with a screw. For fast assembly, the part can be pushed into a 1/4-20
threaded hole, and then screwed in for a tighter fit, or screwed out for
This part will also function as a standard Fin Clip for use in a unthreaded hole with a diameter of approximately 13/64".