thumbnut
Học thuậtThân thiện
Definition
Noun: A thumbnut is a type of fastener, specifically a threaded nut designed with two flat, wing-like projections. These wings allow it to be tightened or loosened easily by hand using the thumb and forefinger, without the need for tools.
Usage
A thumbnut is used to secure objects together on a threaded bolt or screw where frequent adjustment or removal by hand is desired. It is common in applications where tools are inconvenient or where quick assembly/disassembly is needed.
Examples: - Secure the microphone to the stand by tightening the thumbnut. - The lamp's height can be adjusted by loosening the thumbnut on the pole. - He replaced the standard hex nut with a thumbnut for easier access.
Advanced Usage
- "Finger-tighten the thumbnut": To secure the nut using only finger pressure, not a tool. This implies it should be snug but not overtightened.
- After aligning the parts, simply finger-tighten the thumbnut.
Variants and Related Words
- Wing nut: This is the most common synonym and variant for "thumbnut." The terms are often used interchangeably.
- Butterfly nut: Another common synonym, referencing the wing-like shape.
- Thumbscrew: A related fastener; a screw with a wing-like head designed for hand-turning, as opposed to a nut.
Synonyms
- Wing nut
- Butterfly nut
- Hand nut
Related Terms (Not Phrasal Verbs)
- Knurled nut: A nut with a textured surface for grip, which also allows hand-tightening but lacks the large wings of a thumbnut.
- Capstan nut: A nut with radial holes for a spanner wrench, serving a different function for tool-based tightening.
Noun
- a threaded nut with winglike projections for thumb and forefinger leverage in turning