方头螺栓

1.lagbolt  2.square-headbolt  3.rectangularheadbolt  4.lagscrew  5.cupsquarebolt  

方的英语翻译：

direction; power; side; square

头的英语翻译：

beginning or end; cobbra; conk; crumpet; end; first; garret; hair; head
leading; nob; noddle; pate; sconce; side; top; twopenny
【医】 capita; caput; cephal-; cephalo-; head; kephal-; kephalo-

螺栓的英语翻译：

【电】 bolt