Hank Nut M4 x 0.7 Black Gr.8 DIN 980

Hank Nut
Hexagon Head
Metric
Black / Self Color
High Tensile Grade 8
Dia: M4
Pitch: 0.7
DIN 980
Wrench Size Across Flats: 7mm
A DIN 980 nut and a Hank nut (or Hank bush) are two distinct types of fasteners with different functions. While DIN 980 refers to a self-locking nut used on bolts, a "Hank" nut is a rivet bush used to provide a permanent thread in sheet metal.