Flange nuts (also known as weld nuts) can be used to help secure your railbuttons to your rocket.

They come in several different sizes.

When installing the flange nuts inside your rocket, depending on the thickness of the body tube, a portion of the flange nut may protrude.

Priced at $1.00 for a package of 4

4-40 Flange Nut - Pack of 4

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