DIN6923 Hexagon flange nut, DIN6923
National standard GB: GB / T 6177.1
International ISO: ISO 4161
Standard DIN: DIN EN 1661
American standard ANSI / ASME: ANSI / ASME B 18.2.4.4M
European standard EN: EN 1661
NF, France: NF E 25-406
Flange nut and the general hexagonal nut size is basically the same as the thread specifications, but compared with the hexagonal nut, it is the gasket and nut are integrated, and there are anti-skid tooth lines below, which increases the contact between the surface area of the nut and the workpiece, compared with the combination of ordinary nut and gasket, more firm and more tension.
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