| 摘要 |
A concrete bolt assembly (3) comprises a bolt set (30) and a spherical washer (31) for the bolt set (30) to penetrate. The bolt set (30) includes a concrete bolt member (32) and a spherical nut (33) disposed on the concrete bolt member (32). The spherical nut (33) has a first sphere (334A) and the spherical washer (31) has a second sphere (312A). With the arrangement of the first sphere (334A) and the second sphere (312A), the concrete bolt assembly (3) can be embedded in a building material (2) from any inclined angle since the contact of the spherical nut (33) and the spherical washer (31) exerts a perpendicular force to densely tighten the concrete bolt assembly (3), prevent the embedded concrete bolt assembly (3) from easily coming off or extracting from the building material (2) after screwing, and enhance an engaging effect of the assembly. |
