Nominal Size: M16
Thread: 2.0mm Pitch (Coarse)
Width Across Flats: 24mm
Height: 16mm
Flange Diameter: 27mm
Material: Steel
Finish: Zinc
Hardness: Class 8
Style: Serrated
Type: Flange Nut
Specifications: DIN 6923

Box of 4.

A flange nut has a wide flange at one end that acts as an integrated, non-spinning washer. This serves to distribute the pressure of the nut over the part being secured, reducing the chance of damage to the part and making it less likely to loosen as a result of an uneven fastening surface.