A lag screw is similar to a wood screw, but generally is much larger with a hexagonal head..Lag bolts are designed for securely fastening heavy timbers to one another, or to fasten wood to masonry or concrete.
A lag screw is similar to a wood screw, but generally is much larger with a hexagonal head..Lag bolts are designed for securely fastening heavy timbers to one another, or to fasten wood to masonry or concrete.