 | UDC 621.882.6 | GB 8-88 代替 GB8-76 | | 方頭螺栓 C級 | | Square head bolts-Product grade C |
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 | UDC 621.882.6 | GB 10-88 代替 GB10-76 | | 沉頭方頸螺栓 | | Flat countersunk square neck bolts |
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 | UDC 621.882.6 | GB 29.2-88 代替 GB29-76 | | 十字槽凹穴六角頭螺栓 | | Cross recessed hexagon bolts with indentation |
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 | UDC 621.882.6 | GB 32.1-88 代替 GB32、25、26-76 | | 六角頭頭部帶孔螺栓 A 和 B級 | | Hexagon bolts with wire holes on head-product grade A and B |
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