2023-11-03
GB/T 6178, Type 1 hexagonal Channel Nuts - Grades A and B;
GB/T 6179, Type 1 hexagonal Channel Nuts - Grade C;
GB/T 6180, Type 2 hexagonal Channel Nuts - Grades A and B;
GB/T 6181, Hexagonal slotted thin nuts - Grade A and B;
GB/T 9457, Type 1 hexagonal Channel Nuts - fine thread - Grade A and B;
GB/T 9458, Type 2 hexagonal Channel Nuts - fine thread - Grade A and B;
GB/T 9459, Hexagonal slotted thin nuts - fine thread - Grade A and B.
15 countries and regions and 12 industries have different standard writing methods, not only for nuts, but also for other fasteners.
Various national standards can be checked on Good Works, which also provides convenience for purchasing, such as: national standard GB, German standard DIN, international ISO, Japanese standard JIS, American standard ASME, American standard IFI, British standard BS, European standard EN, Italian standard UNI, French standard NF, Australian standard AS, Korean standard KS, Russian standard GOST, Taiwan standard CNS, non-standard W, steam standard Q, machinery JB, chemical industry HG, petroleum SH, standard PEM, electric power DL, electronics SJ, construction JG , railway TB, aviation HB, aerospace QJ, military standard GJB.