The Park Tool TNS-4 Deluxe Threadless Nut Setter, click to enlarge
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Item # TNS-4

/ Tools / Frame & Fork / Headset

Deluxe Threadless Nut Setter

The TNS-4 makes it quick and easy to install star-fangled nuts used with 1" and 1 1/8" threadless headset systems. Using a durable steel driver and built-in guide, the TNS-4 perfectly aligns the star-fangled nut and sets it to the proper depth every time. The unique design virtually eliminates pinched fingers.

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TNS-4 Features

  • Compatible with 1" and 1 1/8" headset systems that use a standard M6 threaded star-fangled nut
  • Replaceable set screw — part #822


Parts & Accessories


Replacement Parts