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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Hexagon slotted and castle nutsstyle 2--Product grades A and B
Standard published on 17.1.1986
Selected format:Hexagon thin slotted nuts--Product grades A andB
Standard published on 17.1.1986
Selected format:Prevailing torque type hexagon nuts (with non-metallic insert), style 2
Standard published on 24.2.2016
Selected format:Prevailing torque type hexagon nuts with flange( with non-metallic insert), style 2
Standard published on 24.2.2016
Selected format:Prevailing torque type hexagon nuts with flange(with non-metallic insert), style 2—Fine pitch thread
Standard published on 24.2.2016
Selected format:Prevailing torque type all-metal hexagon nutsstyle 1
Standard published on 26.9.2000
Selected format:Prevailing torque type all-metal hexagon nuts, style 2
Standard published on 24.2.2016
Selected format:Prevailing torque type all-metal hexagon nuts,style 2—Fine pitch thread
Standard published on 24.2.2016
Selected format:Prevailing torque type all-metal hexagon nuts with flange, style 2
Standard published on 24.2.2016
Selected format:Prevailing torque type all-metal hexagon nuts with flange, style 2—Fine pitch thread
Standard published on 24.2.2016
Selected format:Latest update: 2026-06-22 (Number of items: 2 284 351)
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