The full form of NF screw is National Fine.
NF screws are a type of screw thread standard used in the United States. They are characterized by their fine thread pitch, which results in a higher tensile strength and greater resistance to stripping.
Here are some key features of NF screws:
- Fine Thread Pitch: This means that the distance between each thread is smaller than in other thread standards, such as Coarse (UNC).
- Higher Tensile Strength: The finer thread pitch allows for a greater amount of material in the screw, leading to increased strength.
- Greater Resistance to Stripping: The finer threads are less likely to strip due to the greater surface area in contact with the mating nut or hole.
NF screws are commonly used in applications where high strength and durability are essential. They are often found in aerospace, automotive, and industrial applications.
