Standardization of threaded fasteners, regardless of their purpose, was regulated by the established parameters of GOST, which is still valid for domestic manufacturers of these products. With the opening of borders and an increase in market turnover, products assembled using fittings of other standards began to arrive in the country. If it is necessary to carry out their routine repair or maintenance, the absence of this type of fastener causes certain difficulties.
It is not difficult to solve the problem using the online catalog of the supplier of this type of consumables. And the modern Krepkiy wholesale warehouse of fasteners in St. Petersburg allows you to receive the batch ordered on the website the very next day. To make a competent choice, you need to know the main differences according to which threaded parts are classified.
International standards used
When making an independent selection of fasteners on the site of the Strong store, you need to decide on the name of the desired part, for example, a bolt, stud, nut or plug, as well as dimensional parameters - outer or inner diameter, length or height, turnkey size. The next step is to determine the type of threaded connection. And if everything is clear with metric threads, the step or distance between the upper edges is expressed in millimeters, then inch analogs cause difficulties. For example, the same ½ ”threaded bolt might have:
- 12 turns BSW.
- 16 strands according to BSF classification.
It is sometimes difficult even for an enterprise technologist to understand all the subtleties and features of the classification. To this should be added the parameters for the strength class and the classification of the turnkey heads, as well as the regular introduction of new design solutions:
- Self-locking nuts with nylon spacer.
- Bolts with a head with a slot for a hex key.
You can get professional advice from a specialist in the selection of the necessary fasteners directly on the website of the Krupkom store in the online format. All the product names presented on the pages of the catalog fully correspond to the declared dimensional and technical parameters, are available in the warehouse and are released upon the request made by the buyer.
