This is the end stop tooth.Mainly used to increase the frictional resistance between the end faces to prevent loosening.The stop tooth will damage the surface of the workpiece and is not suitable for parts that require ordinary disassembly.
Twelve-angle flange nut
Flange nut type connection sequence
1. Piping: Use a pipe cutter or a grinding wheel cutter, (cutting piece should be dedicated) to cut the stainless steel pipe vertically according to the required length, trim the end burr, and make it round;
2. Welding: The left and right tapered flange flanges (with grooves, with flanges on both sides for embedding) are respectively welded to the two piping ports that need to be connected by tungsten argon arc welding (TIG welding);
3. Gasket: double-sided flange gaskets are lined between the left and right flanges;

4. Fastening: clamp the two flanges with a clamp, and then use a fastening screw (hexagon socket bolt) to clamp the flange or fasten the handle (one end of the external thread is connected with the internal thread of the handle, and one end is flexibly connected with a fixed rivet) .

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