Hexagon nuts with Collars Din standard 6331 are used on clamping applications which require frequent clamping and unclamping and eliminates the need for washers.
Thread Pitch = 2.5mm
Hexagon Across the Flats ( AF ) = 30mm
Flange Diametre = 37mm
Overall Height = 30mm
High Tensile Class 10
DIN Standard 6331
Black Finish