The use of non-standard screws

Hexagonal non-standard screws, also known as blind rivet nuts, pull caps, instant pull caps, are used in the fastening fields of various metal sheets, pipes and other manufacturing industries. They are widely used in automobiles, aviation, railways, refrigeration, elevators, switches, and instruments. , Furniture, decoration and other electromechanical and light industrial products assembly. It was developed to solve the shortcomings of thin metal plate and thin tube welding nuts, such as easy melting, easy welding deformation of the base material, and easy slipping of internal threads when tapping. It does not require tapping internal threads, welding nuts, and the riveting is firm and efficient, and easy to use.
Stainless steel nut
Types of non-standard screws
Flat head small head hex half hex rivet nuts, with through holes, blind holes, knurled and non-knurled.
The use of non-standard screws
If the nut of a certain product needs to be installed on the outside, and the space inside is small, the indenter of the sub-riveter cannot be allowed to enter for pressure riveting and methods such as sprouting cannot meet the strength requirements, then pressure riveting and expansion riveting are not feasible. Must use pull riveting. It is suitable for the fastening field of various thickness plates and pipes (0.5MM-6MM). The use of pneumatic or manual riveting guns can be rivetted at one time, which is convenient and firm; it replaces the traditional welding nut to make up for the shortcomings of thin metal plate, thin tube welding, and welding nuts are not smooth.
4 Structural rivet nuts are mainly used in non-structural bearing bolt connections, such as the connection of interior parts such as rail passenger cars, highway buses, and boats. The improved rivet nuts that can prevent spin are more excellent than the pallet nuts for aircraft. The advantages are lighter weight, no need to fix the pallet nuts with rivets in advance, and the base material can still be used without operating space on the back.
The specifications of rivet nuts in the national standard are M3, M4, M5, M6, M8, M10, and M12. In fact, M6 and M8 are recommended, because small threads can be directly tapped on the base material. If the threads are large, the weight of the bolt will increase greatly. The increase in connection strength is limited, that is, the matching is unreasonable.