1. A flange nut is a nut that has a wide flange at one end and can be used as an integral washer. This is used to distribute the pressure of the nut over the fixed part, thereby reducing the possibility of damage to the part and making it less likely to come loose due to the uneven fastening surface. Most of these nuts are hexagonal, made of hardened steel and usually coated with zinc. 2. n many cases, the flange is fixed and turns with the nut. Flanges may be serrated to provide locking action. Serrated at an Angle so that the nut does not rotate in the direction in which it was released. They cannot be used with gaskets or on scratched surfaces due to serrations. Serrations help to prevent vibration of the nut from moving the fastener, thus maintaining the holding force of the nut.

Product name	flange nut
Product specification	M6-M50
Surface treatment	Black、zinc
Material	Carbon steel, stainless steel
Standard	DIN,GB
Grade	4.8/8.8
About the material	Our company can customize other different materials different specifications can be customized

1. Flange nuts sometimes have swivel flanges to help create a more stable structure without affecting the finished product as serrated flange nuts do. Rotary flange nuts are mainly used to connect wood and plastics. Sometimes both sides of the nut are serrated, allowing locking on either side. The self-aligning nut has a convex flange fitted with a concave disk washer to permit tightening of the nut on a surface not perpendicular to the nut. 2. Flange nut function or use: mostly used in pipe connection or the need to increase the nut contact surface of the workpiece; Flange nut material :A3 low carbon steel 35K high speed steel wire 45# steel 40Cr 35CrMoA; Flange nut hardness grade: 4 grade 5 grade 6 grade 8 grade 10 grade 12; Flange nut surface treatment: generally divided into two kinds of zinc plating and white zinc plating, and generally cold galvanizing;