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Ngwa
A kọwara bolts ndị a na ANSI B1.13M maka nguzogide ọkwa 6 g. Ihe e ji bolts mee kwekọrọ na ASTM F568M maka Klas 4.6. Ihe e ji bolts ndị na-anaghị emebi emebi kwekọrọ na ASTM F 568M maka klas 8.83. Ọgwụgwọ elu ga-agbaso AASHTO M232.
A kọwara bolts ndị a na ANSI B1.13M maka nguzogide ọkwa 6 g. Ihe e ji bolts mee kwekọrọ na ASTM F568M maka Klas 4.6. Ihe e ji bolts ndị na-anaghị emebi emebi kwekọrọ na ASTM F 568M maka klas 8.83. Ọgwụgwọ elu ga-agbaso AASHTO M232.