DIN 6331/6923/977 Flange Nuts

The DIN 6331/6923/977 flange nuts and the general hexagon nut are basically the same in size and thread specification, but compared with the hexagon nut, the gasket and the DIN 6331/6923/977 flange nuts are integrated, and there are anti-skid tooth patterns on the bottom, which increases the nut and the workpiece. Compared with the combination of ordinary nut and washer, it is firmer and has greater tensile force. The flange nut surface itself has the anti-slip and stop functions of the flat washer and the spring washer, so there is no need to add the flat washer and the spring washer during assembly, which will be counterproductive.

DIN 6331/6923/977 Flange Nuts Specifications
DIN 6331 Flange Nuts DIN 6923 Hex Flange Nut DIN 977 Flange Nuts
 DIN 6331 Flange Nuts
DIN 6331 - 2003 Hexagon Collar Nuts with a Height of 1.5d

DIN 6331 Flange Nuts Dimensions
DIN 6331 Flange Nuts
DIN 6331/6923/977 Flange Nuts Dimentions

 DIN 6923 Hex Flange Nut
Flange Nut DIN 6923 - 1983 Hexagon Nuts With Flange

Equivalent norm: GB/T6177.1, ISO 4161, EN 1661, ANSI/ASME B18.2.4.4M, NF E 25-406

DIN 6923 Flange Nut Dimensions
DIN 6923 Hex Flange Nut
Legend Making
P=pitch Carbon Steel:8,10,12
K=height of the nut Thread:6H
D=the nominal diameter of the thread Surface:BLK,ZP,HDG,etc
E=The length of the diagonal
S=The length of the flat

 DIN 977 Flange Nuts
DIN 977 - 1998 Hexagon Weld Nuts with Flange

Equivalent norm: GB/T 13681.2, ISO 21670, DIN EN ISO 21670

DIN 977 Flange Nuts Dimensions
DIN 977 Flange Nuts
Legend Making
P=pitch Carbon Steel:8,10,12
K=height of the nut Thread:6H
D=the nominal diameter of the thread Surface:BLK,ZP,HDG,etc
E=The length of the diagonal
S=The length of the flat

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