Details Application Technical Articles

Non-standard fasteners refer to fasteners that do not need to be corresponding to the standard without strict standard specifications, which can be freely controlled and matched. They are usually customized according to the customer's specific requirements, and then made by the fastener manufacturers based on the data and information. The manufacturing cost of ordinary non-standard fasteners is higher than that of standard fasteners. Non-standard fasteners are diverse, thus they are difficult to be categorized properly.



The biggest difference between standard and non-standard fasteners is whether they are standardized. The structure, size, drawing and marking of standard fasteners are strictly regulated by the state and they are usually produced by specialized factories. The common standard fasteners include threaded parts, keys, pins, rolling bearings and so on. It is a kind of special fastener, if you are looking for custom fasteners manufacturer and exporter



Non-standard fasteners are different from each other in molds. The parts of the mold and the ones contacted to the product glues are usually non-standard, mainly including the front die, the rear die, and the inserts. In addition to the screw, the nozzle, the thimble, the rubber ring, the spring, the rest of the mold is non-standard fasteners. As for the purchase non-standard fasteners, the buyers should provide technical specifications, drawings, etc. The difficulty of non-standard fasteners is evaluated by the suppliers, and their production cost, batch and production cycle are preliminarily estimated.



Fasteners can be divided into two categories: standard and non-standard fasteners.



Standard fasteners:



They are made according to the national standards but not mandatorily. In GB/T****, GB represents the national standard and T means the national recommendation.



Non-standard fasteners:



The users, by themselves, determine the specifications, sizes, mechanical properties and materials of the fasteners. The actual use determines the drawing of standard parts.



Non-standard fasteners belong to the fastener industry and their key words are non-standard bolt, non-standard nut, non-standard stud, etc.





