Lag screw
01
木螺钉, 六角头螺钉
a strong wooden screw with a pointed end and rough threads, used to securely attach things like wood or metal together
例子
The carpenter used a lag screw to secure the heavy beam to the wall.
木匠用了一个木螺丝将沉重的横梁固定在墙上。
To prevent the deck from shifting, the builder attached the posts with lag screws.
为了防止甲板移动，建造者用木螺丝固定了柱子。
