Hex nuts feature a hexagonal shape and internal threads, providing a secure fastening with bolts or screws. They require a wrench or socket for tightening or loosening, ensuring a robust connection.

Key characteristics include:

• Hexagonal Shape: With six flat sides forming a hexagon, hex nuts facilitate easy gripping and turning.
• Internal Threads: Threads inside the nut match those of the bolt, creating a threaded connection upon insertion.
• Materials: Made from steel, stainless steel, brass, or nylon, hex nuts cater to diverse applications.
• Sizes: Available in various sizes, matching bolt diameters and thread pitches using metric or imperial dimensions.
• Types: Varieties include standard hex nuts, lock nuts (resistant to loosening from vibrations), and nylon-insert lock nuts (featuring a nylon ring for added resistance).

When using finished hex nuts, ensure size and thread pitch alignment with the bolt or screw. Select the appropriate type based on application requirements, such as the need for vibration resistance.