Standard parts are usually developed by standardization agencies or industry organizations from different countries or regions, aiming to standardize the design, manufacturing, and application of standard parts. The following are some common national standards for standard components.
In China, standard parts are standardized using the national standard GB. For example, GB/T 5780, GB/T 97.1, GB/T 97.2, and GB/T 95 are national standards for bolts, nuts, plain washers, and spring washers, respectively.
The German standardization organization DIN has developed many national standards for standard components, such as DIN 933, DIN 934, DIN 125, and DIN 127, which are national standards for bolts, nuts, flat washers, and spring washers, respectively.
The International Organization for Standardization (ISO) has developed many national standards for international standard components, such as ISO 4014, ISO 4032, ISO 7089, and ISO 10642, which are national standards for bolts, nuts, plain washers, and screws, respectively.
In the United States, ANSI has developed a series of national standards for standard components, such as ANSI B18.2.1, ANSI B18.2.2, ANSI B18.22.1, and ANSI B18.21.1, which are national standards for bolts, nuts, plain washers, and spring washers, respectively.
In addition to these common international standards for standard components, other countries or regions have also developed corresponding international standards for standard components, such as JIS B1180, JIS B1181, JIS B1256, and JIS B2705 in Japan, BS 3692, BS 4320, and BS 1802 in the UK, AS/NZS 1252, AS/NZS 1256, and AS/NZS 1237 in Australia and New Zealand, as well as GOST 7796, GOST 5915, GOST 11371, and GOST 6402 in Russia.
It is necessary to select corresponding national standards for standard parts based on specific needs and application fields to ensure that the purchased and used standard parts comply with corresponding specifications and requirements. In addition to some common national standards for standard components mentioned above, there are also other national standards for standard components, such as NF E25-030, NF E25-511, and NF E25-514 in France, UNI 5739, UNI 5587, and UNI 6592 in Italy, KS B0231, KS B0233, KS B0234, and KS B0235 in South Korea, as well as GB/T 5782, GB/T 6187, GB/T 93, and GB/T 197 in China.
When selecting national standards for standard components, it is necessary to consider specific factors such as country, region, and application field to ensure that the standard components comply with the corresponding specifications and requirements.
