Detailed article description for DIN 6921 hexagon screws with flange
DIN 6921 hexagon screws with flange have, in addition to the external hexagon head, an enlargement in the form of a pressed-on disc attached to the lower end of the head. Flange screws with locking teeth underneath the head provide additional security, which additionally interlock the screw head with the surface.
Advantages of hexagon screws with flange
Unlike screws with a slot or Phillips head, external hexagon screws can also be used when the screw head is no longer accessible from above. In addition, hexagon screws are suitable when there is a lack of space due to their relatively low head height.
Where are DIN 6921 hexagon screws with flange used?
Flange nuts are used where a particularly secure hold is required, e.g. for wheel bolts, exhaust suspensions or adapter plates.