Hex Flange Nut mainly includes a nut body, a flange surface is fixed at one end of the nut body, and a cap is fixed at the other end of the nut body; because the cap is set on the nut body, the hexagon method is used The flange nut has better sealing performance, which can effectively prevent rain, moisture, dust and other harmful substances from immersing into the nut body, preventing the nut body from rusting, which can greatly extend the service life of the hexagon flange nut.
Hexagon flange nut material: A3 low carbon steel 35K high-speed steel wire 45# steel 40CR 35Crmoa;
Hexagon flange nut hardness grade: 4 grade 5 grade 6 grade 8 grade 10 grade 12;
Hexagon flange nut surface treatment: generally divided into two types: color zinc plating and white zinc plating, and generally cold electro galvanized;
Main specifications of hexagonal flange nuts: M5 M6 M8 M10 M12 M16 M20 (Flange nuts above M20 and M14 M18 are not commonly used);
Hexagon flange nut thread specification: refer to the national standard nut thread;
National standard code for hexagonal flange nuts: GB6177-2000;
Hex Flange Nut
Use characteristics of custom Hexagon Nuts:
1. Piping: Use a pipe cutter or a grinding wheel cutter, (cutting pieces should be dedicated) to cut the stainless steel pipe vertically according to the required length, and trim the end burrs to make a full circle;
2. Welding: The left and right tapered flange pieces (with grooves, dedicated to the embedding of flange gaskets on both sides) are respectively welded with the two piping ports that need to be connected by tungsten 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) .
Difficulties in the inspection of hexagonal flange nuts: tooth defect, hexagonal opposite corners, size.
45-degree side image of the first site: detect the presence of internal teeth;
Side image of the second site: detect the total height of the nut and the height of the flange;
Image on the third site: detect the opposite corners of the hexagon;
Image under the fourth station: detect the inner hole diameter and flange diameter.