 | UDC 621.882.6 | GB 8-88 | 代替 GB8-76 | | 方头螺栓 C级 | | Square head bolts-Product grade C |
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 | UDC 621.882.6 | GB 12-88 | 代替 GB12-76 | | 半圆头方颈螺栓 | | Cup head square neck bolts |
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 | ISO 8677:1986 | GB 14-1998 | 代替 GB14-88 | | 大半圆头方颈螺栓 C级 | | Cup head square neck bolts with large head-Product grade C |
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 | UDC 621.882.6 | GB 29.2-88 | 代替 GB29-76 | | 十字槽凹穴六角头螺栓 | | Cross recessed hexagon bolts with indentation |
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