Bolt and nut standard is one of the important standards for making parts with connections and making flange connections. Bolts and nuts offered in the market have different types and shapes, and each of them is usually made for different purposes.
Arvand Pars Industry Standard Standard
Bolts and nuts are one of the common types of connections that are used in other parts, and the issue that is very important in this case is the standard of bolts and nuts.
The bolts and nuts offered in the market have different types and shapes, and each of them is usually made for different purposes.
Engineers around the world have been trying to find out about to agree on the standard of machine screws. Countries such as the United States, England, France and Germany are pioneers in the standards related to screws and nuts. Because of the difference between French and German standards which are completely metric, in contrast to England and the United States, two different standards and methods are needed to convert between the two.
Standard types of bolts
As it was said, there are different standards related to connections such as bolts and nuts, and some of these standards are more commonly used. For example, standards such as DIN, ISO and British They are among the most widely used standards.
Currently, the standards related to the DIN Institute are one of the most widely used standards. DIN stands for Deutsches Institut für Normung, which means the German Standardization Institute. DIN standards include a full range of connections.
Some of these standards are:
DIN 603: standard for mushroom head bolts
DIN ****: standard for hexagonal flanged nuts< br> DIN 440: standard for washers used in wooden structures
DIN 444: standard for eye bolts
DIN 580: standard for eye bolts for lifting purposes
DIN ****: standard for tooth lock washers
DIN ****: standard for spiral pins of normal type
DIN ****: standard for spiral pins of heavy type
DIN ****: standard for plain washers for bolts and nuts with heavy fasteners
DIN ****: standard Related to the seal ring
ISO standard
ISO or the International Organization for Standardization is a global federation of national standards bodies (ISO member bodies). This organization includes technical committees whose main task is to prepare It is an international standard. Draft international standards approved by technical committees are distributed to member bodies for voting. Publication as an international standard requires the approval of at least 75% of voting members. p>
In ISO ****, the standard for bolts and fasteners, was prepared by Technical Committee IS/TC 2, Fasteners and Subcommittee SC 10, which
ISO ****: **** Fourth Edition, supersedes Third Edition and replaces that which is a partial revision of it.
Some of the ISO standards are:
ISO 225:****: Standard for symbols and dimensional description of fasteners for bolts, screws, studs and nuts
ISO ****:****: Terminology related to fasteners
ISO ****:****: General requirements for fasteners such as bolts, studs and nuts
ISO *****:****: Quality assurance system Fasteners
ISO ****: Standard for split pins
ISO ****:****: Standard for slotted head screws in product class 1
ISO ****:****: Standard for screws without Slotted head with shank
ISO ****:****: Standard for hexagon bolts and nuts in grade 1 and 2 products
ISO ****:****: Standard for hexagon bolts and small series flanges in grade products 1
ISO ****-1:****: standard for button head screws
British Bolt Standard
When it comes to inch washers and nuts, BS fastener standards are still widely used worldwide.
Of course, they account for a small percentage of production compared to DIN and ISO standards. but it is still among the first 3 standards. Some of these standards are: BS 57: hexagon nut standard Complete
BS ****: Standard for Hex Head Bolts
BS ****: Standard for Flange Bolts
BS ****: Standard for Inch Washers
BSP: Standard for Hex Tubular Lock Nuts