66 Pcs Nut and Bolt Thread Checker - 34 Standard & 32 Metric, Detachable Bolt Size Finder Tool, Screw and Nut Identifier Thread Gauge Especially for Tight Spaces

comments:

zrad603 posted on r/askmechanics2w

You'll just need to figure out what size thread it is, but it's not a "special" nut. Thread checker would be useful:https://www.amazon.com/dp/B0D7CVNF8B

66 Pcs Nut and Bolt Thread Checker - 34 Standard & 32 Metric, Detachable Bolt Size Finder Tool, Screw and Nut Identifier Thread Gauge Especially for Tight Spaces | eaves-shop