What is the rivet nut column? Rivet nut column called rivet nut column or column nut, is a fastener used in sheet metal, sheet metal, chassis, cabinets, rivet nut column and its shape end is hexagonal, the other end is a cylindrical shape, the middle six angle sides and a cylindrical a tool withdrawal groove, the inner shape of internal thread, the preset hole through the press six hexagon head is pressed into the sheet (aperture in the preset hole slightly larger than the outer diameter of the general cylindrical pressure rivet studs) make the hole periphery to produce plastic deformation, the deformation part is squeezed in the back groove rivet nut column, so that the pressure riveting nut riveting in the plate column last, from the formed in the sheet up effective internal thread fixed.
Rivet nut column from the material and the inner thread form into fast cutting steel hole rivet nut column type SO, stainless steel hole rivet nut column type SOS, fast cutting steel blind rivet nut column type BSO and stainless steel blind rivet nut column BSOS type four kinds, which are respectively applied to the use of different environment.
Rivet nut column has no specific national standards, early producers from America, were introduced to the domestic after gradually formed today's industry standards. 
Rivet nut column advantages:
SO (SOS) self riveting nuts hole column, embedded technology is widely applied in the metal plate, the control box and the power supply cabinet and other products panel. The particularity, the structure of the assembly, only the nut column into the metal plate Kong Zhong, in order to achieve the "riveting" operations, has the following advantages:
1, realized range length to assure, greatly simplifies the assembly process, and speed up the assembly type spacing panel and accessories production schedule;;
2, the plate back to remain completely block level, while ensuring the nut column head and the plate plane smooth;
3, raw materials used in free cutting iron or free cutting stainless steel;
Rivet nut column application technology guide:
1, selection of nut column, must according to the thickness of plank, indeed size range, low carbon steel plate hardness must be less than 70RB, stainless steel plate hardness must be less than 80RB.
2, free cutting iron surface treatment, stainless steel to keep the original color, the user can according to need to order according to the specifications in the table, can also according to the need of special custom.
3, the plate hole size must according to the size tolerance of 0-+0.075mm processing, suggestion punching.
4, the installation must be achieved through "riveting" operations, cut cannot impact type.
5, the material adopts stainless steel, tail number with "S" indicate.
6, nut column end face is ruled by "C" said tooth.
7, through hole nut column length below 10mm are full of silk, six angle end party in more than 10mm (type I) or round face hand reaming (type II)