jack nut
jack nut noun: a type of nut with a sheet metal body that mushrooms outward, on the far side of the hole through the substrate, when the screw is screwed in, thus providing anchoring with only one-sided access to the hole. It is nearly equivalent to the female portion of a molly bolt.
Noun
jack nut (plural jack nuts)
- A type of nut with a sheet metal body that mushrooms outward, on the far side of the hole through the substrate, when the screw is screwed in, thus providing anchoring with only one-sided access to the hole. It is nearly equivalent to the female portion of a molly bolt.
Forms of jack nut
| plural | jack nuts |
|---|
Origin of jack nut
From the idea that the nut is jacked into its deformed (expanded) state by a jackscrew-like action of the screw. In practice this step is often performed with a tool that screws in and backs out again, and then the final mating screw follows afterward.
Questions about jack nut
- What does jack nut mean?
- Jack nut means a type of nut with a sheet metal body that mushrooms outward, on the far side of the hole through the substrate, when the screw is screwed in, thus providing anchoring with only one-sided access to the hole. It is nearly equivalent to the female portion of a molly bolt.
- What part of speech is jack nut?
- Jack nut is a noun.
- What is the plural of jack nut?
- The plural of jack nut is jack nuts.
Words near jack nut in the dictionary
Source and license
Adapted from Wiktionary: jack nut (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Cite this entry: “jack nut.” Word.ws, https://word.ws/jack_nut. Based on Wiktionary, CC BY-SA 4.0.