3/8 inch
The head size is 9/16 inch for the 3/8 inch lag bolts . We offer both plain and black oxide finishes. Be sure to call if you need a size we are not offering.
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Hex lag bolts, often called a lag screw, are for fastening in wood. Blacksmiths commonly use them to attach their ironwork in homes and on buildings or structures during installation.
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