Invented right here: the T-Nut

from US Patent 3480061 ‘Fastener member’ by W. H. Leistner, granted 1969-11-25

Simple things like fasteners don’t seem to be invented. It’s almost as if they’ve always been around. Like T-nuts — those hammer-in furniture nuts that also find use as 3D printable tripod mounts — someone invented those?

Sure enough, it seems that local company Sigma Tool & Machine have a lot to do with T-nut development. They’re now on Nantucket Blvd just north of me, and they used to be at 96 Crockford Blvd very close by.

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