If neither part is threaded a bolt must be used: this consists of a screw with a hexagonalhead.
如果两者皆不的部份被穿线于门闩一定被用:这用一个六角形的头有螺丝钉。
2
The utility model discloses a force driven fixing structure for axle center which comprises gear or synchronous belt wheel, axle clamp and inner hexagonalheadbolt.
一种力传动的轴心固定结构,包括齿轮或同步带轮、轴夹及内六角螺栓。
3
A hexagonal molded rubber head forms around the rounded head of the metal bolt insert.