hex nut
Definition
Noun: A hex nut is a type of fastener with a hexagonal (six-sided) external shape. It is internally threaded to be screwed onto a matching bolt or threaded rod to secure objects together.
Usage
A hex nut is used in conjunction with a bolt, screw, or threaded rod. A wrench or socket tool is applied to its flat sides to tighten or loosen it. - Tighten the hex nut onto the bolt until it is secure. - You will need a 10mm wrench to fit this hex nut. - The assembly requires a washer between the hex nut and the surface.
Advanced Usage
- Material and Finish: Hex nuts can be made from various materials (e.g., steel, stainless steel, brass, nylon) and have different finishes (e.g., zinc-plated, galvanized) for corrosion resistance or specific mechanical properties.
- Grading: In mechanical and structural applications, hex nuts are often graded (e.g., Grade 5, Grade 8) to indicate their strength and compatibility with similarly graded bolts.
Variants and Related Words
- Lock Nut: A type of hex nut designed to resist loosening under vibration, often featuring a nylon insert or a deformed thread.
- Flange Nut: A hex nut with an integrated wide flange that acts as a built-in washer.
- Jam Nut: A thinner hex nut, typically used to lock a standard hex nut in place.
- Nut (general term): The broader category of fasteners with an internal thread.
Synonyms
- Hexagonal nut
- Six-sided nut
Related Phrases
- Bolt and nut: The standard fastener pair.
- Wrench flats: The flat sides of the hex nut designed for tool engagement.
Noun
-
a nut with a hexagonal shape
