The difference between non-standard fasteners and standard parts - PTJ Shop
The difference between non-standard fasteners and standard parts
|Non-standard fasteners refer to fasteners that do not need to correspond to the standard, that is, fasteners that do not have strict standard specifications, can be freely controlled and matched, usually by the customer to make specific requirements, and then by the fastener manufacturer Based on these data and information, general non-standard fasteners are manufactured at a higher cost than standard fasteners. There are many types of non-standard fasteners, precisely because of the characteristics of non-standard fasteners, it is difficult to classify non-standard fasteners.|
The biggest difference between standard fasteners and non-standard fasteners is whether there is standardization. The structure, size, drawing, marking and other aspects of standard fasteners have strict specifications set by the state, and the commonly used zeros are produced by professional factories. (partial) parts, common standard fasteners are threaded parts, keys, pins, rolling bearings, and so on.
Non-standard fasteners are different for each mold. The parts on the mold that are in contact with the product glue position are generally non-standard parts. The main ones are front mold, back mold and insert. It can also be said that except for screws, faucets, thimbles, aprons, springs, and the remaining molds are almost all non-standard fasteners. If non-standard fasteners are to be purchased, the manufacturer should generally provide design input such as technical specifications and draft drawings. The supplier will evaluate the difficulty of implementing non-standard fasteners and estimate the production of non-standard fasteners. Cost, batch, production cycle, and more.
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