A log screw, also known as a lag screw or lag bolt, is a heavy-duty fastener used primarily in wood construction. These screws are designed to create strong, secure connections in wood, often used for joining large pieces of timber or attaching heavy objects to wood structures.
1/4 x 1 inch , 1/4 x 1-1/2 inch , 1/4 x 2 inch , 5/16 x 1-1/2 inch , 5/16 x 2 inch , 3/8 x 1-1/2 inch , 3/8 x 2 inch