02 Bolt ɗin U na ƙarfen carbon/Bakin Karfe na U na DIN3570
Ƙwallon U-bolt, ƙwallon hawa doki, sassa marasa daidaito, saboda siffar siffar U da aka sanya wa suna, ana iya haɗa ƙarshen zare biyu da goro, galibi ana amfani da su don gyara bututun kamar bututun ruwa ko flake kamar maɓuɓɓugar mota, saboda...