| 摘要 |
The invention relates to a screw anchor for fastening devices in concrete or masonry, particularly for use in corroding surroundings, for example outside, with a shaft provided at least partially with a thread. The screw anchor is characterized in that at least in the region of the mounting end thereof a sealed, corrosion resistant cover preferably made of a corrosion resistant plastic with high permanent durability encloses it. |
